How the World works_Light and sound have many sources, properties, and uses
- sandylee33
- 2015年12月27日
- 讀畢需時 1 分鐘
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Central Idea
Light and sound have many sources, properties, and uses.
Lines of Inquiry
1. Properties of light and sound.
2. How people investigate scientific questions.
3. The importance of light and sound.
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