"Chemistry and Materials Development" Chemistry and Social Development PPT download

Description

"Chemistry and Materials Development" Chemistry and Social Development PPT download, 22 pages in total.

Knowledge review

Knowledge point 1: Non-metallic materials with a wide range of uses

1. Ordinary glass

(1) It is a ________ material;

(2) The raw materials for making glass include quartz sand (the main component is ____), soda ash and ________;

(3) Glass manufacturing principle:

2. Ordinary glass can be made into a variety of glasses with special uses through various _______ or ______ processing.

(1) By heating ordinary glass to a certain temperature and then cooling it quickly, it can be made into __________ with high strength and high temperature resistance;

(2) __________ can be made by laminating multiple layers of glass and film;

Example analysis

►Type 1 Material classification

Propositional perspective: Test students’ understanding of the material

Example 1 Materials are closely related to people’s life, production and other aspects. Which of the following items has an incorrect relationship with the materials used or main materials ( )

A. Car tires--composite materials

B. Polyester clothes-organic synthetic materials

C． Glass--inorganic non-metallic materials

D． Magnesium aluminum alloy-organic synthetic materials

[Variation question] Nickel-chromium porcelain teeth are a commonly used material in hospitals. They are mainly made of nickel-chromium alloy and ceramics. These two materials belong to ( )

A. Metallic materials, inorganic non-metallic materials

B. Synthetic materials, metal materials

C． Inorganic non-metallic materials, synthetic materials

D． Composite materials, inorganic non-metallic materials

►Type 2: Characteristics and applications of organic synthetic materials

Proposition perspective: Test students’ understanding of organic synthetic materials.

Example 2 Which of the following statements about plastic issues is incorrect ( )

A. The incineration of waste plastics produces a large amount of pollutants

B. Ordinary mulch fragments will degrade quickly in the soil

C． Plastic is a synthetic polymer material with good film-forming properties, insulation, and corrosion resistance.

D． Sorting of plastics a big hurdle for recycling and reuse

Keywords: free download of PPT courseware for the ninth grade of the May 4th Lujiao version of chemistry, PPT download of chemistry and materials development, PPT download of chemistry and social development, .PPT format;

For more information about the PPT courseware "Chemistry and Social Development Chemistry and Materials Development", please click the Chemistry and Social Development PPT Chemistry and Materials Development PPT tab.

"Chemistry and Materials Development" Chemistry and Social Development PPT teaching courseware:

"Chemistry and Materials Development" Chemistry and Social Development PPT teaching courseware, 24 pages in total. Learning objectives 1. Understand the production principles of ordinary glass, and know several common new types of glass; 2. Understand the characteristics of plastics, and be able to understand organic polymer materials from the perspective of molecular polymerization.

"Chemistry and Materials Development" Chemistry and Social Development PPT:

"Chemistry and Materials Development" Chemistry and Social Development PPT, 25 pages in total. New Knowledge Learning Knowledge Point 1 Inorganic non-metallic materials with a wide range of uses 1. Ordinary glass is a kind of ____________ material, which belongs to ____________ material and has...

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Update Time: 2024-10-19

This template belongs to Chemistry courseware Lu Jiao Edition Ninth Grade Chemistry Volume 2 industry PPT template

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