Today in science we tested the dams mine actually WORKED!!! The dam affected  by flowing of the water by creating the water to make a little bit of water come out but a little water can come out and so in real life if you were going to build a dam you would let a little water out and the rest stands back. this is how mine looked like.

All the dams were different in some way. So that means they did not produce the same results. And all the dams were built differently.

Also the dam protected the houses in the town. we used popsicle sticks to protect the town from any flooding happening. nothing would get ruined.

The water going on the rocks is not a smooth path so it can steer the water in any direction.

The hills are a much smoother so the water can flow in an even direction compared to the rocks.

I would not put as many rocks but the right amount to keep the water from flooding. I would also put popsicle sticks in a line like the hashtag and take  a straw and cut it into two equal pieces and then place it in between a hill of rocks and sand so only a little bit of water can come through.