Astronomy

This week, we started studying astronomy.On Monday, we started by looking at a simulation of the moon in its different phases when it is revolving around the earth. We learned the different phases of the moon:
We learned that what ever phase we see the moon in, the moon is always 50% visible.

Full Moon:the moon is fully illuminated by the sun's light.
Waning Gibbous: the moon is mostly illuminated,but is starting to loose its illumination and become less and less visible.
Third Quarter: The moon is half illuminated and half not.
Waning Crescent: The moon is more not illuminated than illuminated.
New Moon: The moon is not visible.
Waxing Crescent: The moon is gaining its illumination.
Waxing Gibbous: The moon is almost fully or more than half way illuminated.

We learned that the moon revolves and rotates at the same time. During the 29.5 day course that it takes, it slowly revolves around the earth and rotates a tiny bit. So, every day, we see a new part of the moon (or don't see) when it turns. For Friday's Homework, we were supposed to research how we get tides.
I understood it as this: the earth rotates every day. The moon cannot keep up with the immense speed of rotation that the earth does. The moon's gravity pulls on the water in the water bodies and tries to pull them off the Earth. When the earth rotates, and gets further away from the moon (during the day if not in Waning Crescent of waxing gibbous.