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Crash Course Kids
What's My Property
What exactly can we tell about an unknown substance by it's properties. We already know that a substance is matter that’s made of one kind of atom or molecule, and that has specific properties and that some substances are elements, which...
Crash Course
Nebulae
A star is born! Introduce young astronomers to the characteristics of nebulae in a narrated video. Discover what they are made of, why some reflect light and others glow on their own, and the locations of several notable nebulae. The...