1. Briefly describe the main differences and similarities between Moon rocks and Earth rocks. 2. How do we know that the maria were formed after the lunar highlands? 3. What is a tidal force? How do...

1. Briefly describe the main differences and similarities between Moon rocks and Earth rocks.

2. How do we know that the maria were formed after the lunar highlands?

3. What is a tidal force? How do tidal forces produce tides in Earth’s oceans?

4. What is the difference between spring tides and neap tides? During which phase(s) do each occur?