04:19 Science & Technology Solving the puzzle of the periodic table Lesson duration 04:19 1,141,008 Views
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04:25 Physical Science The genius of Mendeleev’s periodic table Lesson duration 04:25 3,186,928 Views
03:49 Physical Science Open letter to the president: Physics education Lesson duration 03:49 1,920,074 Views
03:26 Physical Science Describing the invisible properties of gas Lesson duration 03:26 181,606 Views
02:50 Physical Science The ABC's of gas: Avogadro, Boyle, Charles Lesson duration 02:50 211,784 Views
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04:46 Physical Science Magical metals, how shape memory alloys work Lesson duration 04:46 154,775 Views
04:33 Physical Science How big is a mole? (Not the animal, the other one.) Lesson duration 04:33 2,549,187 Views
04:56 Physical Science How to speed up chemical reactions (and get a date) Lesson duration 04:56 2,243,590 Views
