"Chemistry Makes the World a Better Place" Enter Chemistry PPT Courseware 2

Description

"Chemistry Makes the World a Better Place" Enter Chemistry PPT Courseware 2

learning target

1. Understand the development history of chemical science;

2. Understand the help of chemistry to social life, and use chemistry to create a better life.

2. The origin and development of chemistry

Before the 17th century: the ancient chemical period

Chemical knowledge during this period was empirical and fragmented.

Many special vessels and experimental methods were designed in alchemy and alchemy, and a large amount of experience and factual materials were accumulated, which played a great role in the development of chemistry.

The mid-17th century to the end of the 19th century: the modern chemical period

Boyle: Modern Theory of Chemical Elements

Dalton: Modern Atomic Theory

Chemistry became an independent subject and gradually formed its own scientific system.

3. Chemistry is a helper in creating a better life

Chemical application fields: energy, materials, medicine, information, environment, life sciences, etc.

4. Seek advantages and avoid disadvantages, and make good use of chemistry

People do not pay enough attention to the treatment of chemical waste, causing damage to the ecological environment.

Green chemistry emphasizes reducing and eliminating environmental pollution from industrial production at the source, improving resource and energy utilization, reducing waste emissions, and improving environmental quality.

Classic examples

Knowledge point 2: The origin and development of chemistry

Among the inventions in ancient my country, those that do not belong to the category of chemical technology are ( )

A. black powder

B． porcelain

C. compass

D． papermaking

Knowledge point 3: Chemistry is a helper in creating a better life

Chemistry has many uses in life. Which of the following statements is wrong ( )

A.Synthetic fibers enrich the types of clothing materials and beautify human life

B. The application of chemical fertilizers doubles the yield of crops and is beneficial to the environment.

C. Chemically synthesized drugs have saved many lives

D. Abuse of food additives is harmful to human body

Knowledge point 4: Seek advantages and avoid disadvantages, and make good use of chemistry

Which of the following understandings of the subject of chemistry is wrong ()

A. Chemistry has developed new materials for mankind

B. The development of chemistry has led to the deterioration of the ecological environment

C. Chemistry provides new energy for mankind

D. Chemistry has become an important foundation for life sciences

Knowledge training

1. Human beings’ clothing, food, shelter and transportation are all inseparable from chemical science. Which of the following statements is reasonable ( )

A. Chemical technology can improve the quality of human life

B. The chemical industry will definitely pollute the environment

C. Phenomena in nature have nothing to do with the discipline of chemistry

D. You don’t need to know chemistry knowledge in life

2. Which of the following statements is incorrect ( )

A. Use chemicals to produce fertilizers and pesticides to increase food production

B. Use chemically synthesized drugs to inhibit bacteria and viruses and protect human health

C. Use chemistry to develop new energy and new materials to improve human living conditions

D. The direct utilization of fossil fuels promotes the development of low-carbon economy

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"Chemistry makes the world a better place" into the chemistry PPT courseware:

"Chemistry Makes the World Better" Introducing Chemistry PPT Courseware Learning Objectives 1. Understand the objects of chemical research; 2. Understand the concepts of physical changes and chemical changes, and be able to judge the changes of some substances in daily life; 3. Understand the physical properties and Concepts of chemical properties and...

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Update Time: 2024-11-21

This template belongs to Chemistry courseware Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 1 industry PPT template

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