For the first river experiment we wanted to know if people can change the flow of a river by making dams. To test this we took Styrofoam and made a dam. The water flow did not change much from the dam. The water flow was not changed by the dam because the dam broke and had holes in it. You could tell that if there had not been holes in the Styrofoam and it had been more steady it would have changed the water flow. My group and I all agreed that people can change the flow of water by making dams.
For the second river experiment we tested to see if people change the flow of water by throwing trash on the ground and in rivers and lakes. To test this we put little things in the diatomaceous earth and poured water on it. The trash did not change the flow of the water but the water did take the trash along with it.
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