Scientific research work in chemistry at school. Scientific research work in chemistry. "The great Russian genius - Mikhail Vasilyevich Lomonosov"

Student research work in chemistry

from the work experience of chemistry teacher Gabdrakhmanova T.V.

"MBOU Secondary School No. 5" Usinsk Komi Republic

Doubting, we begin to explore,

and by exploring, we find the truth.
Pierre Abelard

Introduction

One of the main functions of a teacher is to teach and develop the student's personality. Of particular importance is the organization of research activities, which have a significant impact on the personal and professional development of students.

For many years, I have been organizing research work among students in grades 8-11 in chemistry at our school.

Purposeresearch work is the education of an inquisitive student who actively explores the world, who masters the basics of the ability to learn, who knows how to listen and hear others.

Tasks:

develop the ability to design your activities (educational, research);

develop students' communicative and creative abilities;

improve skills in working with methods necessary for conducting research - observation, measurement, experiment;

draw up the results of the work, present your work at various competitions;

use students' experience to gain new knowledge;

developing the ability to independently work with various information.

Relevance of the research work:

search for the greatest efficiency between the trends of the innovative educational process and traditional technologies for teaching students;

the need to form a unique creative personality capable of thinking outside the box.

teaching students how to search, systematize and process information received through independent research activities.

Organization of research work in chemistry lessons

When organizing research work, theoretical training is necessary, which students receive in traditional classes for the primary consolidation of knowledge.

Students receive elements of research work in chemistry lessons, but various problems arise, since schoolchildren have a very vague idea of research methods, stages of work, and presentation of the results of their research work. It is difficult for them to select sources of information for a topic, generate ideas, find ways to solve problems, analyze, compare, make generalizations and conclusions, and correlate what has been achieved with previously set goals and objectives.When students are theoretically prepared, they should applyrockywith elements of research and research lessons. To stimulate interest in research activities in chemistry lessons, it is necessary to create a situation of success.

Lessons with elements of exploration.

Students practice in class individual teaching techniques that make up research activities. ToAsking students to conduct research requires forming their understanding of the subject and object of research, a hypothesis, and showing ways to test hypotheses. The research algorithm can be suggested to students using the example of a simple problem problem with chemical content. For example, “What properties should the oxide and hydroxide of an element with atomic number 13 have?” (Annex 1). After completing the work, students can be offered independent research on the problem: “What properties does the hydroxide of a chemical element have if the electronic structure of the atom is expressed by the scheme: 2e; 8e; 5e? According to the content of the elements of research activity, various types of lessons are distinguished: lessons on choosing a topic and research method, working with sources of information, lessons on conducting an experiment, listening to reports, defending abstracts, etc.

The role of problem-based learning is very important in developing students' research skills. A problematic situation encourages students to engage in mental activity (analysis, synthesis, generalization, specification, etc.) When considering the topic “Corrosion of Metals,” a problematic situation can be created. The child gives a speech in which he talks about the dangers of corrosion. The speaker aims to give a general idea of corrosion and the harm caused by this phenomenon. Lines from the report: “Corrosion causes not only direct damage (every year about one third of the metal produced throughout the world is lost from it), but also indirect: after all, metal structures (cars, roofs, monuments, bridges) are destroyed.” We determine the problem that should be solved in the lesson: how to protect metals from corrosion? Students propose and justify methods for protecting metals from corrosion.

A chemical experiment is one of the ways to form and develop students’ research skills. An experiment in a lesson is used to create a problem situation, as well as as a means of confirming or refuting hypotheses put forward by students. When studying the topic “Hydrolysis of salts” at the beginning of the lesson, you can conduct a laboratory experiment and use universal indicator paper to determine the environment of salt solutions. Observations can be recorded in a table.

After conducting the experiment, together with the students we pose a problem. We consider salts as the result of a neutralization reaction. Why do salt solutions have different environments? Based on known knowledge about dissociation, students put forward various hypotheses. Students remember various signs of the classification of acids and bases, analyze the formulas of the proposed salts. During the conversation, students come to the conclusion that hydrolysis occurs, which is one of the chemical properties of salts.

Lesson Study

In the research lesson, students master the methodology of scientific research and establish the stages of scientific knowledge. Students master research knowledge and skills in stages, gradually increasing the degree of independence of students in their research educational activities.

In research lessons, various forms of student learning are used: individual, group, pair, collective. Preference is given to working in groups of 2-4 people, since working in a group contributes to the formation of communicative OUUN. To avoid the disadvantages of group work (conflicts, “hiding behind other people’s backs,” etc.), rules for group work are developed and used.

Workshop lesson

During practical lessons, students also work in groups. Each group consisting of 2-3 people receives an experimental task that must be completed during the lesson. When conducting a workshop for students, instructions are created that, according to certain rules, consistently establish the student’s actions.

Based on existing experience, we can propose the following structure of practical lessons:

Communication of the topic, purpose and objectives of the workshop;

Updating the basic knowledge and skills of students;

Motivation for students' learning activities;

Familiarization of students with instructions;

Selection of necessary teaching materials, teaching aids and equipment;

Carrying out student work under the guidance of the teacher;

Compilation of a report;

Discussion and theoretical interpretation of the obtained results.

This structure can be modified depending on the content of the work, the preparation of students and the availability of equipment. Workshops are conducted in the 11th grade, for example, on the topic “Obtaining, collecting and studying the properties of gases”, “Solving experimental problems in inorganic and organic chemistry”.

In teaching academic subjects, the main task is, first of all, to interest students in the process of cognition: to teach them to ask questions and try to find answers to them, to be able to explain the results, and to draw reasonable conclusions. The introduction of a research approach helps to strengthen the motivation of educational activities in teaching chemistry.

Research work at school can be varied. Students gain research skills in chemistry lessons through practical work that combines a variety of tasks: experimentaltasks, computational problems that require theoretical preparation for work, and reflect the main stages of research activity.

When solving experimental problems, students see the connection between chemistry and life, which contributes to the development of interest in studying the subject, and also prepares them for conscious performance of practical work (Appendix 2). Students' research activities are carried out both in chemistry lessons and outside of class time.

Research work outside of school hours+

- identification of talented and gifted students

Many students are capable of engaging in research, and even more so, research activities. It is important to be able to identify talented and capable students. It must be borne in mind that a student’s overall performance is not the main indicator of his real abilities. It is more difficult to identify students’ readiness for this type of activity. Necessaryfind a student who is interested in this and who will complete the work.

In the classroom, such children are noticeable when performing practical and laboratory work, drawing up projects, and making presentations. When checking such tasks, it is necessary to pay attention to a creative approach to completing tasks and to the use of additional literature. When presenting such work, students are invited to discuss what they liked about this work and what else they can recommend. After the speech, it is proposed to answer several questions aimed at identifying attitudes towards this type of activity.

When analyzing such speeches, you need to pay attention to those students who show a stable interest in this type of work. In the future, these children can be invited to participate in research work.

- formation of interest in scientific creativity

Students do not always show interest in research work, so it is necessary to emphasize the student’s diligence and responsibility. How to interest a student? To do this, you can use several techniques. First, to convince that participation in research work will be useful in later life, outside of school. Secondly, knowing that teenagers strive to somehow stand out, to be different from the majority, then participation in research work will allow them to feel their special position among their classmates. Third, create an atmosphere of competition.

- work with literature

Any activity, whether a school essay or a doctoral dissertation, is impossible without working with literature sources. It is necessary to explain and show the student that a literary source is the basis of his work. During research, students have to work with various sources of information. The student’s task is to learn to work with the source, acquire the skill of independent work, and proper formatting. It is necessary to give some recommendations when working with literary sources. Explain to students that not all the information collected may be necessary, and do not try to include all the collected material in the work.

- practical part of the work

During the practical part, students identify research problems, put forward hypotheses and test them, conducting theoretical or experimental research, and process the results obtained. The role of the teacher at this stage of organizing research activities is not dominant. The teacher cooperates with the student, advises, suggests how to work with the equipment correctly, and conduct an experiment..

By carrying out scientific research, students acquire the skills of independent creativity, independent acquisition of new knowledge, information and their practical application, which will be useful in any field of activity.

- speaking at scientific conferences

Scientific and practical conferences for students are held annually at the school. The success of a presentation at a scientific and practical conference depends on how well and confidently students can present their work in the section, prepare a computer presentation, and the text of the speech. It is necessary to clearly study the criteria for evaluating work. Defense of the work will be effective when the student is fluent in information, is familiar with all parts of the work performed, knows the terms, has public speaking skills, and is well prepared to speak at a conference. A student engaged in research exhibits significant independence at all stages of work. In such children, their cognitive activity increases and, as a rule, the quality of knowledge on the subject improves. Experience gained and research skills of studentsinfluence the quality of experiments in practical work: they quickly select reagents for carrying out reactions, make correct observations and conclusions. Research work can help students decide on a career choice where the main focus is working with chemicals.

Research work is time-consuming and mostly occurs outside of school hours. Students of 9-10th grades annuallyparticipate in a school scientific and practical conference, and present some works at a municipal scientific and practical conference. In 2016, 9b grade student Ekaterina Berestetskaya spoke at a city conference with the topic “Food additives and their effect on the human body”, the presentation was posted on the website https://sites.google.com/site/gabdrakhmanova5/home/vneklassnaa-rabota/gorodskaa-konferencia

In 2017, 9th grade students Artem Shcheglov with the topic “Adsorption properties of coal” and Denis Skvortsov with the topic “Iron - an element of civilization and life” spoke at the municipal scientific and practical conference and took third place. Appendix 3 presents fragments of the work of Artem Shcheglov. Link to presentations of works https://sites.google.com/site/gabdrakhmanova5/home/issledovatelskaa-rabota/zelezo

reagent

№ test tubes

litmus

NaOH

blue

NaCl

violet

HCl

red

Problem 2

Three numbered test tubes No. 1, No. 2, No. 3 contain solutions of barium chloride, sodium sulfate and potassium carbonate. Recognize substances, create reaction equations in molecular, full and reduced ionic form.

Work in pairs (filling out the table, drawing up reaction equations)

	reagents
Substance formulas	HCl	BaCl2	H2 SO4	№ test tubes
BaCl2			White sediment
Na2 SO4		White sediment
K2 CO3	Colorless and odorless gas

One of the substances reacts with the added reagent, but the other two do not. At the same time, we observe that in one of the test tubes the reaction actually took place, that is, some external sign of it should be observed - the release of gas, a change in color, the formation of a precipitate, etc.

Reaction equations

K2 CO3 +2 HCl → 2 KCl +H2 O+CO2

2 K+ +CO3 2- + 2H+ + 2 Cl- → 2 K+ + 2 Cl- +H2 O+CO2

2 H+ + CO3 2- → H2 O+CO2

Na2 SO4 + BaCl2 → BaSO4 ↓ + 2 NaCl

2 Na+ + SO4 2- +Ba2+ + 2 Cl- → BaSO4 ↓ + 2Na+ + 2 Cl-

Ba2+ + SO4 2- → BaSO4 ↓

H2 SO4 + BaCl2 → BaSO4 ↓ + 2 HCl

2H+ + SO4 2- +Ba2+ + 2 Cl- → BaSO4 ↓ + 2 H+ + 2 Cl-

Ba2+ + SO4 2- → BaSO4 ↓

Problem 3

Three numbered test tubes contain solutions of sodium, magnesium, and aluminum chlorides. Recognize substances, create reaction equations in molecular, complete and abbreviated form.

Work in pairs (filling out the table, drawing up reaction equations).

Substance formulas

Reagents

№ test tubes

NaOH

Reaction equations

MgCl2 + 2 NaOH → Mg( OH) 2 ↓+ 2 NaCl

Mg2+ + 2 Cl- + 2 Na+ + 2 OH- → Mg( OH) 2 ↓ + 2 Na+ + 2 Cl-

Mg2+ + 2 OH- → Mg( OH) 2 ↓

AlCl3 + 3 NaOH → Al( OH) 3 ↓ + 3 NaCl

Al3+ +3 Cl- + 3Na+ + 3 OH- → Al(OH)3 ↓ + 3Na+ +3 Cl-

Al3+ +3 OH- → Al(OH)3 ↓

Al(OH)3 + NaOH → Na

Al(OH)3 +Na+ +OH- → Na+ + -

Appendix 3

(Fragments of work)

Research work in chemistry

"Adsorption properties of coal"

Completed by 9th grade student Artem Shcheglov

Introduction

In nature, the phenomenon of absorption of other substances by one substance, called sorption, is widespread. Bodies with a developed surface are capable of absorbing, i.e., adsorbing gas and liquid molecules from the surrounding volume. The practical significance of the phenomenon of adsorption in human life is very great. Let's remember, for example, a gas mask or household filters for water purification. Activated carbon is often used in life and in medicine as an adsorbent.

Relevance of the work :

attracting attention to the study of chemistry from the practical side and applying the acquired knowledge in everyday life, developing interest in obtaining theoretical and practical skills in chemistry: working in the laboratory, working with the Internet to search and transmit information.

Purpose This work is to study and compare the adsorption capacity of white and black activated carbon.

Tasks set to achieve the goal :

find examples of the practical application of the adsorption capacity of activated carbon in human activity and life.

study the adsorption capacity of black and white activated carbon;

observe and analyze the phenomenon of adsorption using activated carbon as an example.

Learn how to use a variety of carbon-containing products without harm to health and what the capabilities of activated carbon are.

For research, I familiarized myself with various sources, technical literature, Internet resources, and found out that the phenomenon of adsorption is widely represented and a well-studied phenomenon. Adsorption underlies purification, drying, gas separation and other processes. Based on adsorption, water is purified and clarified, which is subsequently used for drinking and technical needs. In the theoretical part, I used materials from technical and historical literature, and for the experiment, I used the textbook for students Analytical Chemistry, Laboratory Workshop.

Research methods used in the work :

Study and selection of material;

Observationand analysis of adsorption phenomena;

Experiment.

Hypothesis

Despite the high efficiency of white coal, most people give their preference to a proven natural preparation - black activated carbon.Black activated carbon exhibits better adsorbing properties compared to white activated carbon.

Conclusion

Activated carbon demonstrated to us its adsorption abilities, i.e. absorbent properties.

Why is a small black tablet able to absorb various substances so effectively?

As I found out by studying literary sources, the point is in the special structure of carbon, which consists of layers of carbon atoms located randomly relative to each other, which is why space - pores - is formed between the layers. These pores give activated carbon its properties - the pores are able to absorb and retain other substances. There are an incredible number of such times. Thus, the pore area of just 1 gram of activated carbon can reach up to 2000 m2 ! White and black activated carbon is widely used based on its properties.

Conclusion s

Coal is a medicine, you need to take it according to the instructions.

Black activated carbon is better known and more familiar to students than white.

White coal, despite its synthetic origin, is a higher quality adsorbent.

While studying the literature, I deepened my knowledge about the use of the adsorption capacity of activated carbon in human life. When comparing the adsorption capacity of white and black coal, I found that black coal absorbs odors better; discolors natural lingonberry syrup. White coal discolored litmus better.

Not all substances are completely adsorbed by activated carbon.

One of the reasons that these substances remained in solution and the color did not change may be that the sizes of the molecules of these substances are larger than the pore sizes of the adsorbent.

The hypothesis put forward was partially confirmed.

List of topics for individual projects that were implemented in the disciplines of chemistry and biology in the 2016-2017 academic year. year.

SUBJECT:

"The great Russian genius - Mikhail Vasilyevich Lomonosov"

Problem: Many people assume that it is enough to be born a genius to make any scientific discovery. Geniuses don’t do anything for this, they were already born that way and education has nothing to do with it.

Target: To identify the origins of the development of giftedness and talent of M.V. Lomonosov and answer the question: “Are geniuses born or made?”

Object of study: influence of education and heredity on genius

Subject of study: biographies and scientific heritage of M.V. Lomonosov.

Hypothesis: even pronounced genius needs to be developed and trained.

1. Let's study the scientific understanding of genius and the influence of education on the development of intellectual abilities.

2. Let's study the biography of M.V. Lomonosov.

3. Let’s get acquainted with the discoveries and achievements of the scientist in various fields of science.

tasks:

1.Examine the scientific understanding of genius and the influence of education on the development of intellectual abilities.

2. Study the biography of M.V. Lomonosov.

3. Get acquainted with the discoveries and achievements of a scientist in various fields of science.

Research methods:

Novelty of the research is determined by obtaining new information about the attitude of OGBPOU UTP students to education and self-education.

Theoretical significance The work consists of summarizing and systematizing information about the influence of education on the development of human mental abilities.

Practical significance The work is determined by the developed applications to the research work and the possibility of using the work materials in conducting events in order to attract the attention of students to the problem of reluctance to learn.

SUBJECT:

"Protein in the human body"

Research problem: Many people do not understand the importance of animal protein for the human body, they eat only plant foods and force their children to adhere to such a diet.

Purpose of the study: answer the question: “Why eat meat, fish, eggs.”

Observation object: the impact of the lack of animal protein in the diet on the development and health of adolescents.

Subject of study: functions of protein in the human body.

Hypothesis: Teenagers need animal protein for growth and development.

It will be possible to answer the question if:

1. Let's study the structure and functions of protein.

2. Let's study the processes of protein biosynthesis

3. Let’s answer the question: “Essential amino acids - what are they?”

4. Let's study the medical literature about the consequences of protein deficiency.

5.Diagnostic material for conducting research (questionnaire) has been developed.

6. We will conduct a survey of UTZhT students and process the results.

7. Let's analyze the obtained theoretical material and process the results.

Research objectives:

1.Study the structure and functions of protein.

2.Study the processes of protein biosynthesis.

3.Answer the question: “Essential amino acids - what are they?”

4. Study the medical literature on the consequences of protein deficiency.

5.Develop diagnostic material for the study (questionnaire).

6. Conduct a survey of UTP students and process the results.

7.Analyze the obtained theoretical material and process the results.

Research methods: search, comparative, descriptive, survey.

Novelty of the research is determined by obtaining new information about the attitude of OGBPOU UTP students to the problem of rational nutrition.

Theoretical significance The work consists of summarizing and systematizing information about the impact of rational nutrition on the health of a teenager.

SUBJECT:

« Corrosion of metals in various environments.”

Problem: Corrosion of metals is a complex physical and chemical process that depends on many factors. Does the environment in which the metal is located affect the rate of corrosion?

Purpose of the study: study of metal corrosion in various environments.

Object of study: phenomenon of metal corrosion.

Subject of study: dependence of the corrosion rate of metals on the environment.

Hypothesis:

It will be possible to study the corrosion of metals in various environments if:

The theoretical foundations of metal corrosion have been studied.

Experiments have been carried out confirming the dependence of the metal corrosion rate on the environment.

The obtained theoretical and practical material was analyzed and the results were processed.

Based on the hypothesis put forward, the following are formulated: tasks:

Study the theoretical foundations of metal corrosion.

Conduct experiments to confirm the dependence of the metal corrosion rate on the environment.

Analyze the received theoretical and practical material, process the results and draw conclusions.

Research methods: exploratory, comparative, descriptive, observation, experiment.

Theoretical significance The work consists in summarizing and systematizing information about the phenomenon of metal corrosion.

Practical significance work is determined by developed applications in the form of recommendations for removing rust from metal products at home.

SUBJECT:

“The discovery of PSHE by D. I. Mendeleev was an accident or a pattern.”

Problem

Many people mistakenly assume that D.I. Mendeleev is not credited with the discovery of the Periodic Law and PSHE, because he saw the Periodic Table in a dream.

Target: refute erroneous assumptions about the merit of a great scientist.

Object of study: the influence of long-term and focused work on achieving the set goals: the discovery of the Periodic Law and the creation of the PSHE.

Subject of study: life and work of D. I. Mendeleev before the discovery of the law.

Hypothesis: If you set a goal and work towards the goal, it will be achieved.

It will be possible to answer the question if:

1. Let’s study the “state” of chemistry during the period of scientific activity of a scientist.

2. Let's study the biography of D. I. Mendeleev

3. Let's get acquainted with the scientific works of the scientist before the discovery of the Periodic Law.

4.We will develop diagnostic material for the study (questionnaire).

5. We will conduct a survey of UTP students and process the results.

6. Let's analyze the obtained theoretical material and process the results.

Based on the hypothesis put forward, the following are formulated: tasks:

1.Study the “state” of chemistry during the period of the scientist’s scientific activity.

2. Study the biography of D. I. Mendeleev

3. Familiarize yourself with the scientific works of the scientist before the discovery of the Periodic Law.

4.Develop diagnostic material for the study (questionnaire).

5. Conduct a survey of UTP students and process the results.

6.Analyze the obtained theoretical material and process the results.

Research methods: search, comparative, descriptive, survey.

Novelty of the research is determined by obtaining new information about the attitude of OGBPOU UTP students to the merits of D.I. Mendeleev in the discovery of the Periodic Law and to purposeful work to achieve set goals.

Theoretical significance work consists in summarizing and systematizing information about the impact of targeted work on achieving goals.

SUBJECT:

“No to electronic cigarettes”

Problem

Many people have the misconception that e-cigarettes are not harmful.

Objective of the project: prove that e-cigarettes are dangerous to health.

Object of study: technical school students, their attitude towards electronic cigarettes.

Subject of study: e-Sigs.

Hypothesis: Let's assume that e-cigarettes are dangerous to health.

It will be possible to answer the question posed if:

1. The theoretical basis of the harmful effects of electronic cigarettes on living organisms, including the human body, has been studied;

2. The chemical composition of liquids used to refill electronic cigarettes has been studied;

3. Diagnostic material for the study has been developed;

4. A survey of UTP students was conducted and the results were processed.

Based on the hypothesis put forward, the following tasks are formulated:

1.Study the theoretical basis of the harmful effects of electronic cigarettes on living organisms, including the human body;

2.Study the chemical composition of liquids used to refill electronic cigarettes;

3.Develop diagnostic material for the study;

4. Conduct a survey of UTP students and process the results;

5. Develop information material in the form of a booklet containing the results of the survey, facts about the harmful effects of chemicals used in electronic cigarettes on human health;

Research methods:

Search, comparative, descriptive, survey.

Novelty of the research determined by obtaining new information about students’ attitudes towards electronic cigarettes.

Theoretical significance The work consists of summarizing and systematizing information about the influence of substances that are used in electronic cigarettes on living organisms by obtaining relevant information to assess the situation related to the use of electronic cigarettes by students of OGBPOU UTP.

Practical significance The work is determined by the developed applications to the research work and the possibility of using the work materials in carrying out events in order to attract the attention of students to the problem of the harmful effects of substances used in electronic cigarettes on human health and popularize the idea of a healthy lifestyle among UTP students, disseminating work experience among other educational organizations.

Works: All Selected To help the teacher Competition “Educational Project” Academic year: All 2015 / 2016 2014 / 2015 2013 / 2014 2012 / 2013 2011 / 2012 2010 / 2011 2009 / 2010 2008 / 2009 2007 / 2008 2006 / 2007 2005 / 2 006 Sorting: Alphabetically Newest

How did Nobel Prize Winners from Great Britain and Russia contribute to the progress of Humanity

The history of the Nobel Prize and its creator. British Nobel laureates. Russian Nobel laureates. The influence of the Nobel Prize on the progress of mankind.
"Quindecim miracula" Amur region

Project goal: to reveal the concept of “quindecim miracula” of the Amur region; characterize the existing mineral springs of the Amur region, study their chemical composition and effect on the human body.
And our water is a particle of health, or...

A study on a comprehensive hygienic assessment of the quality of drinking water from various sources on the territory of the Rozhdestvenskoe rural settlement is described. 12 samples of well and tap water were studied using visual-colorimetric, organoleptic methods (A.G. Muravyov’s method), and the titration method. Recommendations for improving water quality are proposed.
Highway, snow, soil, plants

The work clarifies the influence of the highway on the content of lead and chlorine ions in snow, soil and plants. The negative impact of high concentrations of these ions on living organisms has been proven.
Recently, the car has become a human competitor in the struggle for living space. Object of study: the problem of environmental pollution by motor vehicles and its prevention in modern society. In the course of the work, the level of atmospheric pollution in the Kuznetsk district of Novokuznetsk by vehicle exhaust emissions was studied. Measures have also been developed to protect the environment from the influence of motor vehicles.
Automotive fuel and its application

This work shows the interdisciplinary connection of chemistry with the professional cycle of subjects in the profession of “Auto mechanic”. The work describes the main types of automobile fuel, its areas of application, and the processes occurring during fuel combustion.
Agent 000, or Shield and Sword

Everyone knows the role of ozone for planet Earth: the ozone shield protects all living things from aggressive ultraviolet radiation. But ozone is also a sword. The famous James Bond was agent 007, the zeros before the seven meant that the agent had the right to kill. The code designation for ozone is even more menacing - three zeros, 000. Ozone is an agent with the right to mass kill bacteria and all kinds of harmful impurities. The purpose of the work is to study the properties of ozone and search for reagents for its detection. The discovery of ozone is described; the role of the Earth's ozone layer; Ozone workers professions. In the experimental part of the work, ozone was obtained physically - using a continuous spark discharge; chemical method - acting with concentrated sulfuric acid on potassium peroxosulfate. The bleaching effects of ozone on dyes were studied. We selected a more sensitive reagent for detecting ozone - a mixture of solutions of ferrous sulfate and potassium thiocyanate.
Agronomy. Effect of mineral fertilizers

The work provides information on the history of agronomy. The characteristics of macro- and microfertilizers, their biological role for the growth and development of plants are given. Particular attention is paid to nitrates in terms of the consequences of their use by humans.
Agrochemical study of the soil at the school site of the "Zhasyl Alan" school

The work examines the issues of soil fertility and carries out a quantitative analysis of the content of sulfate, carbonate and chloride ions from a sample of a school plot of land. A bacteriological analysis was also carried out jointly with the regional veterinary laboratory and the amount of nitrates and pH of the soil was determined together with the regional sanitary and epidemiological station.
Agrochemistry for eighth graders

I was assigned the following tasks: to determine the physical and chemical state of the soil from a summer cottage, to conduct a comparative analysis of the growth of indoor plants and vegetable crops on the studied soil with and without mineral fertilizers, to use industrial nitrogen-containing wastewater from the NPK production (Rososh) as a mineral fertilizer ). Based on the results of my research, it can be argued that fertilizers are a stimulator of plant growth, but only in the doses it needs.
Adsorption of acetic acid by activated carbon

The purpose of our work was to study the adsorption of acetic acid and select a process model (Langmuir and Freundlich adsorption models). By experimentally determining the difference between the solution concentration before and after adsorption for solutions of different concentrations and knowing the mass of the adsorbent, we obtained data on specific adsorption depending on the equilibrium concentration of the solution.
Nitrogen in food, water and the human body

The work provides information about the role of nitrogen for the human body, water, and air. Methods for determining (detection) fixed nitrogen in various substances: food, water, air are described. Food products (flour, starch, cheese, bread, water, etc.) and air were analyzed for the presence of nitrogen in them. The importance of protein foods for humans is shown. The dangers of fashionable protein diets are assessed.
Nitrogen and its compounds

The work examines the structure, properties and use of nitrogen and its compounds; shows the importance of nitrogen, its effect on living organisms; nitrogen cycle in nature; Diagrams for the production of nitrogen fertilizers and their use in crop rotation are presented.
Nitrogen as a biogenic element

The work is devoted to the study of the biological role of nitrogen. It examines the significance of the most important compounds of this element, as well as its relationship with legumes. The material contains interesting information about the freezing of living structures in liquid nitrogen.
Let's look around. The nature around us is filled with many beautiful rich colors. So I decided to borrow a piece of this variety of colors from her. The work describes the types of paints and the history of their invention; method of making watercolor paints. A method is described for extracting dyes from various plants and preparing paints from them suitable for painting.
Watercolor paints. Their composition and production

The work is devoted to research into the physical and chemical properties of watercolor paints. The properties and features of paints are considered. The characteristics of the main components of watercolor are given. The issue of industrial production of watercolor paints is touched upon. A description of the method for extracting dyes from plants is given. A technique for obtaining a base for watercolor paints based on available raw materials is presented.
Aquarium as a chemical and biological research object

Many novice aquarists dream of having fish such as labeo in their aquariums, not knowing that the water in them does not always correspond to the natural habitat conditions of these fish. This project outlines simple and accessible methods for studying the physical and chemical parameters of aquarium water.
Activated carbon. Adsorption phenomenon

“Adsorption” (from the Latin “ad” - on, with, and “sorbeo” - absorb) is the absorption of any substance (adsorbate) from a gaseous medium or solution by a surface layer of a liquid or solid (adsorbent). Adsorption plays an important role in many natural processes. It is thanks to adsorption that the first stage of absorption of various substances from the environment by cells and tissues of biological systems occurs. The work investigated the adsorption capacity of activated carbon. The application of this property in practice is shown.
Actinoids: a look from the past to the future

The work presents data on the family of actinide elements (No. 89-103 PSHE): general characteristics of the element, history of discovery, preparation. A separate chapter provides information about nuclear fuel, its classification, and the design of nuclear reactors.
The relevance of the pedagogical views of D.I. Mendeleev in the light of modernization of modern Russian education

The work analyzes the works of D.I. Mendeleev on problems of education. The purpose of the work is to compare the tasks of modernizing Russian education, the requirements of the Federal component of the State Standard of General Education and the views of D.I. Mendeleev on the development of education in Russia and substantiation of the relevance of these views today.

Chemistry project topics

(3-11 grades)

(a summary of the projects can be found on the websitehttps://project.1september.ru)

"Coca-Cola": new questions of an old problem
"People's" use of non-recycled chemical barrels from the development of the Bayandy oil field in the region
“Portrait” of cosmetics by a chemist
And our water is a particle of health, or...
Highway, snow, soil, plants
Car as a source of chemical pollution of the atmosphere
Automotive fuel and its application
Agent 000, or Shield and Sword
Agronomy. Effect of mineral fertilizers
Agrochemical study of the soil at the school site of the "Zhasyl Alan" school
Agrochemistry for eighth graders
Adsorption of acetic acid by activated carbon
Nitrogen in food, water and the human body
Nitrogen and its compounds
Nitrogen as a biogenic element
Watercolor paints from natural materials
Watercolor paints. Their composition and production
Aquarium as a chemical and biological research object
Activated carbon. Adsorption phenomenon
Actinoids: a look from the past to the future
The relevance of the pedagogical views of D.I. Mendeleev in the light of modernization of modern Russian education
Relevance of economic views of D.I. Mendeleev in the light of modern trends in the development of the Russian economy
Algebraic methods for solving chemical problems
Alkenes
Diamond is an allotropic modification of carbon
Diamonds. Artificial and natural growth
Alchemy: myths and reality
Algology and chemistry of seaweed
Aldehydes
Alfred Nobel and his prizes
Aluminum
Aluminum and its welding
Aluminum in the kitchen: a dangerous enemy or a faithful assistant?
Aluminum - metal of the 20th century
Aluminum. Aluminum alloys
Amylase as an object of chemical research
Salivary amylase
Aminocarboxylic acids
Amur Cable Plant
Analysis of the water of the Surgut River in the village of Novoye Gankino
Analysis of bottom sediments of Lake Ak-Khol, Mongun-Taiginsky district of the Republic of Tyva
Analysis of the quality of water taken from the Moscow River for educational and research purposes
Analysis of milk and dairy products
Analysis of food additives in food products, their impact on human health
Food waste analysis
Soil analysis using ion chromatography
Spring water analysis
Analysis of ascorbic acid content in some currant varieties
Analysis of the contents of tea bags in a school chemistry laboratory
Analysis of physicochemical parameters of finished mayonnaise
Tea analysis
Chips analysis
England in the life and work of D.I. Mendeleev
Water anomalies
Antibiotics
Antibiotics
Antiseptics
Anthropogenic influence of wastewater on spring waters
Arenas
Arithmetic and geometric progression in our lives
The aroma of health
Aromatherapy
Aromatherapy
Aromatherapy and essential oils
Ester-based flavors
Aromatic oils are a priceless gift of nature
Aromatic essential oils and their uses
Aromas, smells, vibes
Architecture through the prism of chemistry: Antonio Gaudi
Ascorbic acid: properties, physiological action, content and dynamics of accumulation in plants
Aspirin
Aspirin as a preservative
Aspirin - friend or foe?
Aspirin - benefit or harm
Aspirin: friend or foe?
Aspirin: pros and cons
Atomic physics
Nuclear power. Ecology
Oh, these bacteria!
Aerosols and their use in medical practice
Butterflies
Chemical Element Database
Barycentric method
Bashkir honey
Escape from surprise, or Search for living and dead water
No big deal, but not baby food
Safe food. Food quality assessment
Safety in school lessons
Product safety, or What the glaze hides
Safety of Essential Oils
"Whiteness" is good in all matters
Squirrels
Squirrels
Proteins in Tuvan national dairy products
Proteins and biological balance
Proteins and their importance in human nutrition
Proteins and their nutritional value
Proteins as natural biopolymers
Proteins vs fats and carbohydrates
Proteins are the basis of life
White stone
Benz(a)pyrene - a chemical and environmental problem of our time
Take care of your teeth from a young age
The priceless gift of the earth
Beta naphthalorange
Biogenic classification of chemical elements
Biogeochemical role of woody vegetation in a small industrial city
Biogeochemistry of nitrogen and phosphorus in aquatic ecosystems of the city of Astrakhan
Bioindication of gas and smoke pollution based on the condition of pine needles
Biologically active substances. Vitamins
Biologically active food additives and their effect on the human body
Dietary supplements: profanity or benefit?
Biologically active compounds
Biological clock, or how to live long
Biological significance of fat-soluble vitamins
Biodegradable bags and study of their structure using an atomic scanning microscope and an infrared Fourier spectrometer
Biodegradable polymers - packaging of the future
Biorole of vitamins
Bis-phenol, or the harm of plastic dishes
Noble gases
Boblovo as an agricultural laboratory D.I. Mendeleev
Toxic chemical warfare agents and their impact on the integrity of the ecological system
Big Wash
Paper and its properties
Sandwich with iodine, or the whole truth about salt
Buffer systems
Are rocks edible?
Would there be life on Earth without the existence of iron?
Household filters for purifying tap water and a method for their regeneration
Born in water, but afraid of water
In the world of mirror surfaces
In the world of acids
In the world of metal corrosion
In the world of polymers
What does the bread taste like?
Shower jam
The Great Mystery of Water
Great discoveries of great French scientists
The great scientist M.V. Lomonosov
The greatest milestone in the development of chemistry
Eternal youth - myth or reality?
Substances – tolerants and intolerants
Interaction of nitrone with ricinoleic acid
Interchangeable pairs of metals in the environment and their impact on human health
Relationship between subjects: chemistry and literature
The relationship between the tone of the autonomic nervous system and the level of health of students
Video trilogy "Social anti-advertising for youth"
Types of chemical bond
Quiz "Metals"
Vitamin C and its effect on the human body
Vitamin C and its importance
Vitamin C. Colds under lock and key?
Vitamins in human life
Vitamins for your green friend
Vitamins and vitamin deficiency
Vitamins and human health
Vitamins as the basis for the life of living organisms
Contribution of V.G. Shukhov in the development of the Russian oil industry
Contribution of D.I. Mendeleev in the development of agrochemistry, its significance for modern agriculture
Contribution of D.I. Mendeleev in the development of science
Contribution of D.I. Mendeleev in the development of the Russian oil industry
Contribution of D.I. Mendeleev in the development of customs tariffs and their impact on the Russian economy
Contribution of M.V. Lomonosov in the development of chemistry as a science
Contribution of N.S. Kurnakov in the development of physical and chemical analysis
The contribution of alchemy to the development of chemistry as a science
The contribution of the Russian inventor Academician V.G. Shukhov in the development of Russian science, engineering, transport system and industry of Russia
Tasty, but not harmless
Tasty - tasteless
Tasty, harmful and healthy at the same time
Vlasov Klyuch
The impact of road transport on the environment of the Kirillovsky microdistrict
The influence of road transport on the degree of air pollution
The influence of motor transport on the content of heavy metal ions in the soil
The influence of vehicles on the environmental condition of the school yard
The effect of alcohol and tobacco on the human body
The effect of antibiotics on plant germination and growth
The influence of anti-icing reagents on textile materials
The influence of anthropogenic impact on the ecosystem of a city park
The influence of anthropogenic factors on living organisms
The impact of household chemicals on the environment and human health
The influence of cutlery substances on the human body
Influence of external conditions on the growth of crystals of various salts
The influence of the aquatic environment on the corrosion rate of the water supply system of the Central region of St. Petersburg
The influence of exhaust gases on plants in the Kuznetsk district of Novokuznetsk
The influence of exhaust gases on snow cover
The effect of carbonated drinks on human health
The influence of alkali metal halides on the crystallization process of table salt
The impact of railway transport on the environmental situation and residents of Rybnoye
The influence of living and dead water on living organisms
The influence of smells on the psycho-emotional state of schoolchildren
Influence of Pb2+, Cu2+ and H+ ions on plant growth and development
The influence of heavy metal ions on the growth and development of tomatoes of the "Moscow Lights" variety
The influence of cations of the Caspian Sea on its inhabitants
The influence of water quality on human health and the environmental situation in the village of Sazhino
Effect of acid rain on living organisms
The influence of the acidity of an aqueous solution on the absorption of heavy metal ions by plants
The influence of medium acidity on the process of electroplating deposition when recycling zinc from sulfate electrolyte
The influence of tobacco smoke components on the human body
The influence of knowledge culture on smoking attitudes
The influence of knowledge culture on smoking attitudes
The effect of smoking on the body
The effect of smoking on the human body
The effect of metals on the female body
The effect of metals on the human body
The influence of mineral fertilizers on the yield of beets cultivated in risky farming conditions
The effect of urea on seed germination and subsequent seedling growth
The influence of inorganic salts of light metals on the regeneration of adventitious roots of white and brittle willow
The influence of inorganic fertilizers on plant growth and development
The effect of nitrates on human health
The influence of the environment on the growth of crystals of chromium-potassium alum and honey chloride
The influence of octane number on the detonation stability of fuel
The influence of pasteurization on the properties and composition of milk
The influence of nutrients on plant growth processes
The influence of food on the structure of teeth
The influence of the nature of the thread on the process of crystallization of table salt
The influence of de-icing reagents on vegetation
The effect of soft carbonated drinks on human health
The influence of various fertilizers on the yield of red beets
The influence of various factors on the transition of meat collagen to gluten
The effect of different types of shampoos on hair thickness
The influence of different water sources on the germination of oat seeds
The influence of lead and zinc on the growth and development of barley
Effect of heavy metal salts on living organisms
The influence of the ratio of shortcrust pastry components on the taste of cookies
The effect of sorbitol on the strength of boric acid
The influence of the state of snow cover on the environment of the village of Khanymey
The influence of household chemicals on human health
Effect of growth stimulator SILK on potatoes of the Adretta variety
The effect of tobacco on living organisms
The effect of dark chocolate on the human body
The influence of thermal cooking and hot storage of vegetables on the vitamin C content
The influence of thermal cooking on the color change of beets
Effect of heavy metals on the activity of the enzyme catalase
The influence of heavy metals on the human body and the environmental situation p. Sazhino
Effect of heavy metals on pea plants
The influence of heavy metals on the biosphere
The effect of fertilizers on plant growth and development
The effect of drinking carbonated drinks on the human body
The influence of storage conditions on the quality of vegetable oil
The influence of environmental factors on the oxidation of iron and its role in ecology
Influence of factors on the content of tannins in black tea
The influence of the physicochemical properties of SMS on their cleaning effect
The influence of plant phytoncides on human health
Effect of fluoride ion on tooth enamel
The influence of fungicides on the microbiological activity of soil
The influence of chemicals in the architecture of the "Round Building" on its longevity
The effect of chemicals on dental health
The influence of chemical plants on the ecology of our city
The influence of chemical factors on soil pollution and the impact of soil conditions on human health
The influence of chemical elements on human life
The effect of perm on hair
The influence of environmental conditions on the growth and development of various traits of spring wheat variety Moskovskaya-35
The effect of energy drinks on human health
The effect of energy drinks on the human body
The influence of essential macro- and microelements on the human body
The effect of ethyl alcohol on the human body
The influence of essential oils on the healing process of the human body
Water
Water WATER discord
Zubovsky spring water: to drink or not to drink?
Water is different from water
Water and respect for its resources
Water and health
Water and human health
Water is amazing and amazing
The water is amazing and amazing
Water is the number one substance
Water is a familiar and unusual substance
Water is the source of life
Water is the source of life
Water is the source of life. The problem of health improvement
Water is the basis of life
Water is the basis of life
Water is a familiar but unusual substance
Water is the most amazing substance in the world
Water is an amazing substance on Earth
Water is an amazing substance of nature
Water is a vital component of the health of each of us
Water, water, water all around
"Water, water, water all around"
Water that gives life
The water we drink
The water we drink
Water... how many secrets it keeps. Problems of drinking water in the city. Kirov
Vodka and ethyl alcohol. Gas chromatographic express method for determining the content of toxic microimpurities
Reservoirs and civilization
Hydrogen in industry, production and sales forms
Hydrogen indicator in our life
Return of a forgotten name
Effect of sulfuric acid on carbohydrates
Impact of heavy metals on living organisms
Air is an inexhaustible raw material
Air is a natural mixture of gases
The air we breathe
Air-invisibility
Is it possible to grow stalactites and stalagmites at home?
Around smokeless powder
Fibrous materials around us
Magic salt
Sorceress salt
Sorceress salt
Magic liquids - determinant substances
Magic crystals
Magic crystals
The magical properties of salt
Magical world of colors
The magic of a soap bubble
The magic of a soap bubble
Chemistry riddle question
The dangers of soda: myth or reality?
The harm and benefits of chewing gum
Harm of smoking
The harm of smoking and the influence of students’ knowledge culture on attitudes towards smoking
The harm of energy drinks
Harmful yummy
Harmful effects of tobacco products on living organisms
Bad habits
Bad habits of modern schoolchildren
We all come from childhood
All about jeans
All about iodine
Everything about alcohol, as it is: origins, essence, consequences
All the secrets of amber
"It all began here, in our native land..."
The whole life of D.I. Mendeleev - a feat of service to the homeland
The whole truth about carbonated drinks
The whole truth about carbonated drinks. To drink or not to drink?
The whole truth about ice cream
The whole truth about nutritional supplements
All about honey
Everything about food from a chemist's point of view
All about chemical elements
All about regular salt
All about tea
Second most common
Volcanoes: from birth to eruption
Selection of environmentally friendly brightening additives for galvanizing electrolyte
Emissions from motor vehicles and factors determining them
Air emissions from the village of Bolshaya Sosnova
Isolation of water from various liquids
Growing and tinting crystals at home
Growing salt crystal at home
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing Crystals
Growing crystals in a home laboratory
Growing crystals at home
Growing crystals at home
Growing crystals at home
Growing crystals at home
Growing crystals at home

Scientific research work in chemistry at school. Scientific research work in chemistry. "The great Russian genius - Mikhail Vasilyevich Lomonosov"

How did Nobel Prize Winners from Great Britain and Russia contribute to the progress of Humanity

"Quindecim miracula" Amur region

And our water is a particle of health, or...

Highway, snow, soil, plants

Automotive fuel and its application

Agent 000, or Shield and Sword

Agronomy. Effect of mineral fertilizers

Agrochemical study of the soil at the school site of the "Zhasyl Alan" school

Agrochemistry for eighth graders

Adsorption of acetic acid by activated carbon

Nitrogen in food, water and the human body

Nitrogen and its compounds

Nitrogen as a biogenic element

Watercolor paints. Their composition and production

Aquarium as a chemical and biological research object

Activated carbon. Adsorption phenomenon

Actinoids: a look from the past to the future

The relevance of the pedagogical views of D.I. Mendeleev in the light of modernization of modern Russian education