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"A word about the benefits of chemistry"
Completed by: Team "Dreamer" Pupils: Grade 9.

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Chemistry and everyday human life
Chemistry, possessing enormous potentialities, creates unprecedented materials, multiplies 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.

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Life modern man impossible without chemistry
We use chemicals in production food products. We move around in cars whose metal, rubber and plastics are made using chemical processes. We use perfumes, eau de toilette, soaps and deodorants, the production of which is unthinkable without chemicals. There is even an opinion that the most exalted feeling of a person, love, is a set of certain chemical reactions in the body.

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Chemistry and medicine
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.

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Detergents and cleaners
At present, synthetic detergents- detergents. 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.

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Insect control products
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 preparations: chlorophos, dichlorvos, chlorophos pencils.

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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.

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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.

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Cosmetics
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.

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

Presentation slides

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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.

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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 complete test tasks (slide No. 9). The lesson is summarized based on the results of the test and the assignments completed on the topic are set off.

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Water Fresh water Ice

Environmental problems of clean water

Water on a planet scale

Water in the human body

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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.

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

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Paper. Paper

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

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

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Ceramics

Terracotta. Majolica. Faience. Porcelain.

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1) The human body consists of water for: 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 sodium chloride 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.

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Chemistry, with its enormous potential, creates materials that have never been 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. But the same chemistry can become dangerous to human health, even deadly.

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Home first aid kit

Hydrogen peroxide (H2O2) is an excellent antiseptic. However, if you confuse a 1-2% peroxide solution with perhydrol (30% solution), you can get severe burns on the skin and mucous membranes. Ammonia (an aqueous solution of ammonia NH3) excites the respiratory center. This is used to bring the patient out of a state of fainting.

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Aspirin, or acetylsalicylic acid, is one of the drugs that are used as an antipyretic, anti-inflammatory, analgesic, antirheumatic agent. The medicine for the treatment of the cardiovascular system is Corvalol, Validol, Nitroglycerin. But remember: incorrect use, high dose can turn the medicine into poison!

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Detergents and cleaners