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Qingdao Edition Fourth Grade Science Volume 1	pptx	6 MB

"Glass and Plastic" PPT

Author: ︶￣Ｓs°╮

Upload Time: 2024-10-29

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"Glass and Plastic" PPT

Part One: Friendly Tips:

1. During the experiment, it is necessary to divide the work well and help each other.

2. Be careful when using glass and hammer! When smashing glass and plastic, place them on the wooden block and use the same force. Do not use too much force. Use caution when clearing debris.

3. When burning glass and plastic, hold them with tweezers and do not shake them. The burning time should be the same.

4. Inform the students who recorded the observations in time in a timely manner.

Part 2 content: Learning survey

Survey: What do disposable convenience bags bring to us?

1. How many convenience bags does your family use in a day?

2. What is the area when these convenience bags are expanded?

3. There are nearly 300 million families in our country. How long will it take for the convenience bags we use to cover the earth?

4. What do these data tell us?

Keywords: Qingdao edition fourth grade science PPT courseware free download, glass and plastic PPT download, .PPT format;

For more information about the "Glass and Plastics" PPT courseware, please click on the Glass and Plastics ppt tab.

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Update Time: 2024-10-29

This template belongs to science courseware Qingdao Edition Fourth Grade Science Volume 1 industry PPT template

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Glass and plastic ppt

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"Glass and Plastic" PPT