In Science Class . . . . Week of 2/15 and 2/22

The fourth and fifth graders have been continuing their investigations of how water and other natural forces can shape the land. We have been experimenting with sand, clay and water, and watching erosion and deposition take place. The students read about and studied pictures of both erosion and deposition. Key questions: When rock is washed away, what is this process called? How can the rock in the mountains become sand on the beach? Why did the clay move further than the sand in our stream tables? When sand or clay settles to the bottom of a body of water, what is that process called?  What is the area of deposition at the mouth of the river called? How were erosion and deposition affected by the "flood" we created in our stream tables?