https://www.youtube.com/watch?v=NAg4qXsk99c
https://www.youtube.com/watch?v=IE-YBaYjbqY
https://www.youtube.com/watch?v=kX3gk5-Yygw
https://www.youtube.com/watch?v=RXkYjL_7jME
https://www.youtube.com/watch?v=FVVSGcfFWVc
The five senses in space
How astronauts put on space suits
https://www.youtube.com/watch?v=VsdoJy8rzZg
Why does earth spin
https://www.youtube.com/watch?v=H4JUTnkiGpI
The known universe
https://www.youtube.com/watch?v=17jymDn0W6U
Size Comparison
https://www.youtube.com/watch?v=HEheh1BH34Q