Experiment two: Deposition

Deposition

 Question:What happens to the land that gets eroded?
Hypothesis: I think that the sand floor of the land deacreses and it depose.

Materials:

• 2 buckets 
• 1 ruler
•  wood piece
•  ruffle sand 
• clay 
• fine sand
•  water 
• stream table

Procedure:
First, as last time we putted the sand and measured it 20cm and then we putted the wooden piece in the bottom of the stream table.
Then we filled a bucket with the small hole on the bottom with water and putted on top of the stream table and we let all the water fall down.
We put a big bucket on the bottom of the stream table so it could hold the water.
Observation: I saw that when the first drops were coming down the water started to spread.
It started making a hole and it kept on becoming bigger and bigger.
It started to form a little valley and the valley was getting wider and wider.
Then at one point it the valley started to get deeper and as more water came down the sand created a bigger valley.
A lot of water was coming down at once really fast and that caused more water coming out of the tray.
A second valley started creating.
And at the end the first valley got wider than the second one.
Conclusion: The hypothesis that I made was actually right and I think that this experiment was pretty fun. I think that and I hope that we can keep on making them.