4, The grain size would be sand, and the rock name would be sand stone.
Answer:
The highest high tides, and lowest low tides occur during a new/full moon.
Explanation:
This is also called spring tides where you have two extreme types of tides. These tides happen when the sun, moon, and earth line up.
It could help them if they pour a bottle of water on soil that has the max water it could hold they could find out just how Watered the ground is. Hope this helps!