Chemistry 101 for Beginners - 搜索视频

Chemistry & Physics:Chemistry 101: The Scientific Method Season 1 Episode 101

Chemistry & Physics:Chemistry 101: The Scientific Method Season 1 Episode 101

Introduction to Chemistry: Scientific Method Students learn to describe the steps of the scientific method, distinguish between observations and conclusions, and identify qualitative and quantitative observations.

PBS2013年9月23日

短视频

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24 chemistry experiments for kids and adults.

24 chemistry experiments for kids and adults.

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