Earth, Moon, and the Sun

Hi guys!
I have two videos which are good for you here, for learning about the revolution and the rotation of earth and moon.

https://www.youtube.com/watch?v=EXasopxAFoM

and

https://www.youtube.com/watch?v=l64YwNl1wr0

then, do your workbook page 80-81.

Goodluck guys!