Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...
A science video maker in China couldn’t find a good explanation for why hot and cold water sound different, so he did his own research and published it. By Sam Kean Most people are quite good at ...
Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...
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