"Chemistry Around Us" Everyone Comes to Learn Chemistry PPT Courseware 2

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"Chemistry Around Us" Everyone Comes to Learn Chemistry PPT Courseware 2

What is the content of chemistry class?

What is the use of chemistry to individuals, families and society?

Is chemistry fun?

How can I learn chemistry well?

1. The relationship between chemistry and social life

Life phenomena are closely related to chemistry

Metabolism is the basis of life activities, and its essence is a series of chemical reactions.

Chemistry is useful

1. Agriculture requires fertilizers and pesticides manufactured by the chemical industry

2. The garment industry needs chemical synthetic fibers

3. The construction industry requires building materials and decorative materials manufactured by the chemical industry

4. Transportation requires materials and fuels provided by the chemical industry

5. Preventing and treating diseases and protecting the environment require products and methods provided by the chemical industry

6. National defense construction requires steel, explosives and special materials provided by the chemical industry

2. Contents of Chemistry Course Study

Chemistry knowledge in life

The composition, properties and changes of matter

The impact of chemistry on social life

methods of scientific inquiry

3. How to learn chemistry well

1. Diligent in previewing and good at listening to lectures and taking notes

2. Review often and memorize more

3. Thoroughly understand the textbooks and connect them with practice

4. Pay attention to experiments and cultivate interest

Classroom drill

1. Which of the following statements do you think is scientific? ( )

A. Dry ice can turn into toxic gas under certain conditions.

B. Eating more pickled foods can prevent cancer

C. The volume fraction of medical alcohol must reach 85% to have a good disinfection effect.

D. Activated carbon can be used to make refrigerator deodorizers

2. There are many views on the origin of life on earth in the history of science, one of which is called "cosmic panspermia". It believes that life on earth comes from other celestial bodies in the universe and reaches the earth through appropriate channels. In recent years, analysis of the composition of some meteorites has revealed the presence of various organic compounds that constitute living matter on other celestial bodies, such as various amino acids. Analysis of the composition of some comets has also revealed the presence of simple organic compounds in some comets. From this, what do you think the view of "cosmic panspermia" is ( )

A. Correct, we should think that life on earth comes from the universe

B. Wrong, because the textbook tells us: life on earth originated from non-living matter on earth

C. A conjecture without any factual basis and without any scientific value

D. A hypothesis that is based on few facts and can neither be proven nor confirmed so far.

3. There is a trial abroad of using "soda" (carbonated drink) to water plants. Its function is ( )

A. Beneficial to plant respiration B. Improve alkaline soil and adjust soil pH

C. Accelerate the progress of photosynthesis D. Form a greenhouse above the plants

4. A passenger bus was driving on the road at night and found that the fuel tank was leaking and the compartment was filled with the smell of gasoline. The emergency measures that should be taken at this time are ( )

A. Sprinkle water to cool down and dissolve gasoline vapor

B. Turn on the light to find the oil leakage location

C. Let the people in the car gather at the back of the car

D. Open all windows, strictly prohibit all fireworks, and evacuate passengers

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For more information about the PPT courseware "Everyone Comes to Learn Chemistry, Chemistry Around Us", please click the Chemistry ppt tab for Everyone Comes to Learn Chemistry ppt.

"Chemistry Around You" Everyone Comes to Learn Chemistry PPT Courseware:

"Chemistry Around Us" Everyone Comes to Learn Chemistry PPT Courseware

Chemistry is closely related to clothing, food, housing, transportation, energy, materials, national defense, environmental chemistry, medicine and health, resource utilization, etc.

1. What is chemistry?

Chemistry is the study of matter and its changes.

File Info

Update Time: 2024-09-09

This template belongs to Chemistry courseware Cantonese Education Edition Ninth Grade Chemistry Volume 1 industry PPT template

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