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New Review Lunar Eclipses
A lunar eclipse or the red moon? This is the focus question of a captivating video hosted by the knowledgable and energetic Jessi and her mouse sidekick Squeaks. Here, the two examine the what, why, and how of lunar eclipses and...
3 mins Pre-K - 6th Science CCSS: Adaptable
How We Know About the Earth's Core
The big question is, how do we know about the composition of the earth's core? Sal explains that at 105 degrees from the source point of an earthquake the phenomena of p wave shadow zone leads us to conclude that the waves are traveling...
6 mins 8th - 11th Science