Presentation of chemistry in everyday human life. Presentation on the topic "substances in everyday life" Chemistry and everyday life simple presentation

slide 1

slide 2

slide 3

slide 4

slide 5

slide 6

Slide 7

Slide 8

Slide 9

slide 10

slide 11

slide 12

slide 1

slide 2

slide 3

slide 4

slide 5

slide 6

Slide 7

Slide 8

Slide 9

Slide 10

Presentation on theme: "Chemicals in Everyday life person "" (Grade 9) can be downloaded absolutely free of charge on our website. Project subject: Chemistry. Colorful slides and illustrations will help you interest your classmates or the audience. To view the content, use the player, or if you want to download the report - click on the appropriate text under The presentation contains 10 slide(s).

Presentation slides

slide 2

The purpose of the lesson

Summarize knowledge about chemicals used in everyday human life; Focus on environmental issues clean water; Using testing to reveal the acquired knowledge on the topic.

slide 3

After the teacher announces the topic of the lesson and its purpose, all students are divided into 6 creative groups: "Water", "Paper", "Matches", "Salt", "Glass", "Ceramics". Each group prepares a presentation on their topic using the slides. Moreover, in groups there is one student who prepared the message. Message topics: 1. "Problems of clean water" 2. "History of paper money" 3. "Who invented money" 4. "Salt" 5. "The history of glass" 6. "Ceramics". After listening to all the material prepared by the groups on the topic, students begin to perform test items(slide number 9). The lesson is summarized based on the results of the test and the assignments completed on the topic are set off.

slide 4

Water Fresh water Ice

Environmental problems of clean water

Water on a planet scale

Water in the human body

slide 5

Salt

The role of salt in human metabolism. Salt balance in the human body. Getting salt. The use of table salt in the chemical industry.

slide 6

History of matches. Types of matches. Processes that occur when a match is ignited.

Slide 7

Paper. Paper

The history of paper. Types of paper. Cotton - paper fabrics. Waste paper.

Slide 8

History of glass. Getting glass. Types of glass. Glassware.

Slide 9

Ceramics

Terracotta. Majolica. Faience. Porcelain.

Slide 10

1) The human body consists of water at: a) 70%, b) 65%, c) 90% d) 100% 2) Swamp water is a large reserve of fresh water because it contains: a) salt, b) alcohol, c) carbolic acid, d) sulfuric acid 3) The development of putrefactive bacteria stops when the content of table salt in water: a) 10-15%, b) 5-10%, c) 3-6%, d) 1-3%. 4) The first match factory in Russia was registered in: a) 1837, b) 1848, c) 1913, d) 1858. 5) First paper production in the Moscow state it was established in: a) 1550, b) 1590, c) 1670, d) 1367. 6) Crystal is called: a) soda-potassium glass, b) lead-potassium glass, c) potassium glass, d) soda glass. 7) Terracotta translated from Italian means: a) burnt earth, b) salt glaze, c) freezing, d) firing.

Tips on how to make a good presentation or project report

1. Try to involve the audience in the story, set up interaction with the audience using leading questions, the game part, do not be afraid to joke and smile sincerely (where appropriate).
2. Try to explain the slide in your own words, add additional Interesting Facts, you don’t just need to read the information from the slides, the audience can read it themselves.
3. No need to overload your project slides with text blocks, more illustrations and a minimum of text will better convey information and attract attention. Only the key information should be on the slide, the rest is better to tell the audience orally.
4. The text must be well readable, otherwise the audience will not be able to see the information provided, will be greatly distracted from the story, trying to make out at least something, or completely lose all interest. To do this, you need to choose the right font, taking into account where and how the presentation will be broadcast, and also choose the right combination of background and text.
5. It is important to rehearse your report, think over how you will greet the audience, what you will say first, how you will finish the presentation. All comes with experience.
6. Choose the right outfit, because. The speaker's clothing also plays a big role in the perception of his speech.
7. Try to speak confidently, fluently and coherently.
8. Try to enjoy the performance so you can be more relaxed and less anxious.

Chemistry, having enormous potential, creates materials never seen before, multiplies the fertility of the soil, facilitates the work of a person, saves time, clothes, preserves his health, creates coziness and comfort for him, changes the appearance of people. But the same chemistry can become dangerous to human health, even deadly.

Medications Hydrogen peroxide (H202) is an excellent antiseptic. However, if you confuse a 12% solution of Nerocapd with perhydrol (30% solution), you can get severe burns on the skin and mucous membranes. Ammonia (an aqueous solution of ammonia) excites the respiratory center, and large doses of ammonia can completely stop breathing. Aspirin, or acetylsalicylic acid, is one of the drugs that is widely used as an antipyretic, as well as. Since it is an acid, its excess can irritate the gastric mucosa and cause ulcers.

Means for combating household insects Regularly cleaning the room, keeping the dishes, stove, floors, linen in perfect cleanliness, you are still not guaranteed from the appearance of harmful household insects in the house. If they appear, then insecticides come to the rescue, insect control agents. Insecticides are used in the form of solutions, emulsions, suspensions, aerosols.

Development Food Industry Artificial food is cheaper, prepared and ready to eat. Its production allows solving the problems of some scarce products. For example, black caviar, salmon, various aspic dishes, chicken soup, meat and fish broth, marmalade of various varieties, juices.

Synopsis of a chemistry lesson

2 course on the topic

"Chemistry and everyday human life"

Target:

To create substantive and organizational conditions for the independent application of a complex of knowledge and methods of activity on the example of chemicals that surround a person in everyday life; organize the activities of students to generalize knowledge and methods of activity.

Tasks:

– generalization of students' knowledge about the practical significance of chemicals in everyday human life;

– development of cognitive interest in the subject, development of skills to apply the knowledge gained in the lessons in practice;

– the formation of communicative competencies - the ability to work in a team, group, express and defend one's own point of view;

– creation comfortable conditions taking into account the individual mental characteristics of students and the individual pace of work, the organization of independent work of students with reference material and other information resources, the formation of skills healthy lifestyle life.

During the classes .

1 . Organizing time setting the goal of the lesson

Our today's lesson is devoted to the topic "Chemistry and everyday human life." In any industry human activity, therefore, in any professional activity associated with the material world, we inevitably come into contact with substances and use their properties and interaction with each other. Chemistry, having enormous potential, creates materials never seen before, increases the fertility of the soil, facilitates the work of a person, saves time, clothes, preserves his health, creates coziness and comfort for him, changes the appearance of people. The use by people of the achievements of modern chemistry requires a high general culture, great responsibility and, of course, knowledge. It is for this purpose that we are conducting this lesson, and I hope it will be interesting and useful also for those who consider chemistry a boring, useless school subject, far from everyday life ordinary person

As M.V. Lomonosov "Chemistry stretches its hands wide into human affairs." And indeed it is. It is impossible to embrace the immensity, so we will break the indicated problem into several topics,

Early in the morning we get up and go to wash and clean ourselves up, so the first topic is"Hygiene and cosmetics"

Then we run to the kitchen for breakfast, the second topic is "Chemistry and food."

And of course, no one will argue that it is in"Home First Aid Kit"there is the quintessence of what even grandmothers call the word "Chemistry".

And in today's lesson we will discuss only these three topics. In addition, the sacred date for us is approaching - the 65th anniversary of Great Victory. This Victory was won by our people very hard. The price of victory is many millions human lives, this is pain, this is suffering, this is a great feat not only for soldiers, but also for those who remained in the rear. Chemistry also made its contribution to the common cause of the Victory. Today we will not talk about metal smelting, gunpowder production, etc. - this is so obvious. But how and what substances helped to live and survive in those difficult years - you will be offered additional tasks on this topic. Depending on how hard we work today, you can do them in class, or you can do them at home.

So, let's begin.

2. The main stage is the presentation of information projects.

You came to the lesson not only with a baggage of theoretical knowledge gained over four years in our lessons, some of you prepared information projects for these topics, so you have the first word.

1 project "Hygiene and cosmetics"

After each project, tasks are voiced, they are also presented on a slide, and on printouts for each.

Task number 1 -During the Great Patriotic War and in the early post-war years, when there was a shortage of soap, many washed their hair with a filtered infusion of wood ash. How can one explain the use of ash for these purposes? Write the equations for the corresponding reactions.

2 project "Chemistry and food"

What was the war, living today, fortunately, it is difficult to imagine. But even in those Hard times life didn't stop.

From the memoirs of Irina Ivanovna Korshunova, an excellent student of education in the USSR and the RSFSR, a resident of besieged Leningrad: “I often dream at night of 125 blockade grams of bread with fire and blood in half. This piece for us was worth its weight in gold, white-white - it was baked from bran and paper. Bread is still sacred to me.”

Task number 2 - Calculate what proportion of the daily energy requirement for an adult (average rate of 3000 calories) was a blockade ration of bread weighing 125 g, if its energy value is 200 calories per 100 g.

3 project - "Home First Aid Kit"

During the Second World War, many chemists created drugs needed to treat the wounded. So, the polymer of vinyl butyl alcohol obtained by M.F. Shostakovsky - a thick viscous liquid - turned out to be a good tool for healing wounds, it was used in hospitals under the name "Shostakovsky's balm". Academician A.V. Pallady synthesized means to stop bleeding. Scientists at Moscow University have synthesized the enzyme trombone, a drug for blood clotting. In the USSR, the first penicillin was obtained by Z.V. Ermolyeva in 1942. The development of methods for the biological synthesis of penicillin on a mass scale, its isolation and purification, the elucidation of the chemical nature, and the manufacture of drugs created the conditions for the medical use of antibiotics. During the war years, penicillin was used to treat complicated infected wounds and saved the lives of many Soviet soldiers.

Task number 3 - During the Great Patriotic War, a solution of 0.018 g of penicillin (C 16 H 18 N 2 O 4 S) in 1 liter of glucose solution (density is 1 g/ml). Calculate the molar concentration (C, in moles per liter) of this solution.

3. Summarizing

Our conversation has come to an end. In the next lessons, we will continue to discuss questions about the importance of chemistry in modern world, well, now, as a reflection of today's lesson, I will ask you to discuss the following problematic question "Science Chemistry does a person do more good than harm?" You have two fields on your worksheets - "Arguments" for "and" Arguments "against". Give at least three arguments in each field. You can discuss this in pairs and then talk together.

Work in pairs, individual - at the choice of students.

General discussion - express their opinion all students

What is more weighty - "Arguments" for "or" Arguments "against"?

On the board are statements:

true science knows neither likes nor dislikes: its only goal is truth. (Grove William)

The material success that mankind owes to science is even the least of the benefits that are the result of its activity: it claims legal rights to an incomparably larger area, to the moral and social area. (Berthelot Pierre Eugene Marcellin)

So, I think that today each of you is convinced that chemistry as a science, as well as substances, their interactions, the phenomena that accompany these interactions, not only benefit a person, but are an integral part of everyday life.

Chemistry presentation - Chemistry and everyday human life

Chemistry Possessing enormous potential, it creates unprecedented materials, increases the fertility of the soil, facilitates the work of a person, saves his time, clothes, preserves his health, creates coziness and comfort for him, changes the appearance of people. But the same chemistry can become dangerous to human health, even deadly.

Home first aid kit
Hydrogen peroxide is an excellent antiseptic.
Ammonia, an aqueous solution of ammonia, excites the respiratory center.
Aspirin, or acetylsalicylic acid, is one of the drugs that is widely used as an antipyretic, anti-inflammatory, analgesic and antirheumatic agent.
Medicines for the treatment of the cardiovascular system are validol, corvalol, nitro glycerin.

Detergents and cleaners
Currently, synthetic detergents are widely used. The main one is synthetic surfactants, in which a long hydrocarbon limiting radical is connected to a sulfate or sulfonate group. In addition to surfactants, SMS also includes other components: bleach, softener, foaming agents, aromatic fragrances.
Of the oxygen-containing bleaches, sodium perborate and sodium percarbonate are the most common.

Means for combating household insects
Insecticides are insecticides. Insecticides are used in the form of solutions, emulsions, aerosols. Residential premises should be treated only with preparations recommended for this purpose. These are well-known drugs: chlorophos (), dichlorvos, chlorophos pencils.

Chemical means of hygiene and cosmetics
Cosmetics and hygiene are in close contact, as there are cosmetic products (lotion, creams, shampoos, gels) that perform a hygienic function. Important hygiene products include, above all, soaps and detergents.

Dental care products
Toothpastes are the most important means of caring for your teeth. The main components of toothpaste are as follows: abrasives, binders, foaming agents and thickeners. The first of them provide mechanical cleaning of teeth from plaque and polishing. Most often, chemically precipitated calcium carbonate is used as an abrasive, as well as calcium phosphates and polymeric sodium metaphosphate.

Deodorants
Deodorants are available in solid form, roll-on and aerosol. Aerosol cans use liquefied gases, the boiling point of which is very low. They easily pass into the gas phase and not only push the base out of the cylinder, but, expanding, spray it into small droplets. For a long time this role was performed only by fluorochlorocarbohydrates.

Cosmetical tools
The mother-of-pearl effect is created by bismuthyl salts or mica containing about 40% titanium oxide.
As a hair dye, dilute aqueous solutions of highly soluble salts of lead, silver, copper, bismuth are used.
Hair lightening is done with a 3% hydrogen peroxide solution.
Coloring shampoos contain p-phenylenediamine, resorcinol and other similar compounds.

Chemistry and food
Man is the only creature on Earth that exposes almost all of his food to chemical or heat treatment.

Download Chemistry presentation - Chemistry and everyday life of a person

Publication date: 10/31/2010 04:17 UTC

Tags: :: :: :: :: :.