Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Third Grade Science Volume 2, Textbook Edition
Third Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 1
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
Qingdao Edition Fifth Grade Science Volume 2
Zhejiang Education Edition Seventh Grade Science Volume 2
Fifth Grade Science Volume 2, Textbook Edition
Fourth-grade science volume 2 of the E-education edition
Hunan Education Edition Fifth Grade Science Volume 2
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Category | Format | Size |
---|---|---|
Hunan Education Edition Third Grade Science Volume 1 | pptx | 6 MB |
Description
"Our Clothes" Various Materials PPT Courseware
How have the fabrics used to make clothes changed from ancient times to today?
Our primitive ancestors made clothing from leaves (skin) or animal skins.
The development of the textile industry during the Tang and Song Dynasties brought about qualitative changes in the materials used for clothing (mainly cotton, linen, and silk).
With the development of modern science and technology, clothing materials have gradually changed to cotton and chemical fiber as the main materials. In addition, there are also special space suits suitable for space.
Investigate what our clothes are made of
Look at the materials listed on your clothing labels. And fill in the results you see in the table below.
Fabrics for making clothes can be divided into natural and synthetic (chemical fiber) according to their materials:
Natural materials include cotton, linen, silk, wool, leather, etc. Synthetic materials include acrylic, polyester, spandex, vinylon, etc.
What are the different characteristics of clothes made of different materials?
Research on clothing materials
Put different clothing materials tightly on the flashlight and observe carefully with a magnifying glass to check the luster, texture, fiber thickness, etc. of the different clothing materials.
Test the wear resistance of different clothing materials
Wrap different fabrics on a small wooden block and sand on fixed sandpaper. Compare which clothing material is the most wear-resistant.
Keywords: Various materials teaching courseware, our clothes teaching courseware, Hunan Education Edition third grade science PPT courseware download, third grade science slide courseware download, various materials PPT courseware download, our clothes PPT courseware download, .PPT format;
For more information about the PPT courseware "Various Materials Our Clothes", please click the Various Materials PPT Our Clothes ppt tag.
File Info
Update Time: 2024-09-04
This template belongs to science courseware Hunan Education Edition Third Grade Science Volume 1 industry PPT template
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