We have been studying a lot about changes to the Earth. We made a chart of different events that make changes at very different rates. Some things happen very quickly, and others happen very slowly. Many changes to the Earth are very, very, very, very, very, very slow. They happen over millions of years, and you can't see that they are happening, but we can find evidence they have occurred.
We also set up our giant stream table in the past few weeks, and have been using it to look at how water can change the land. We noticed that after a flood, the path of the river had changed. We also noticed that the river did a lot of eroding, and it pulled a lot of sand downstream toward the ocean.
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