Последние добавленные видео:
Simple-Chemistry
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1 year ago
3428015 1 year ago 18:49GENERAL CHEMISTRY explained in 19 Minutes
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6 years ago
265366 6 years ago 4:16My thoughts on starting chemistry as a hobby
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12 years ago
1782301 12 years ago 18:14Basic Chemistry Concepts Part I
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8 years ago
5109892 8 years ago 3:01:41Intro to Chemistry, Basic Concepts - Periodic Table, Elements, Metric System & Unit Conversion
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7 months ago
4870716 7 months ago 12:155 Easy At Home Science Experiments w/ Mark Rober
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7 years ago
761134 7 years ago 1:45What Is Chemistry?