How Does The Earth Spin?
https://www.youtube.com/watch?v=9zso7ChaQXQ
Why Are Astronauts Weightless?
https://www.youtube.com/watch?v=iQOHRKKNNLQ
How Old Is The Earth?
https://www.youtube.com/watch?v=5yFnO2O6XPM
Where Did The Earth Come From?
https://www.youtube.com/watch?v=zuMjnP1YbPw
Can You Solve This Shadow Illusion?
https://www.youtube.com/watch?v=liqF6EamiE4
Are You Lightest In The Morning?
https://www.youtube.com/watch?v=lL2e0rWvjKI
How Far Away is the Moon? (The Scale of the Universe)
https://www.youtube.com/watch?v=Bz9D6xba9Og
Where Do Trees Get Their Mass?
https://www.youtube.com/watch?v=2KZb2_vcNTg
Misconceptions About Temperature
https://www.youtube.com/watch?v=vqDbMEdLiCs
Where Does The Sun Get Its Energy?
https://www.youtube.com/watch?v=Ux33-5k8cjg