Experiment One: Water Erosion

Question: What happens to land when water flows over it?



Hypothesis: I think the land under the water will become a river because the land will get pushed down and water will flow in that area.


Materials: 4 cups of water, Bucket with small hole, Ruler, sand, hard sand, clay, Bucket with 3 pipes and small hole at end, wooden wedge.



Procedure: Put sand and hard sand and clay in the bucket with pipes. Mix the sand and clay.
make sand 20 cm in the length is the side without the hole. Take the wooden wedge and put it under the sand side. Put the ruler under the bucket in the sand side. Pour water



Observation:When water was not there the sand was staying in 1 place, when we put water the water carried the sand with it. Also the water created a hole where the water dropped.The water went only 1 way and made the sand flow with it. I think this represented a river and if it dries out it can be a canyon.


Conclusion: My Hypothesis was kind of correct because the land made a river and it made a canyon after it dried out.