Question: what happens to the tissue when water flows and hits it?
Hypothesis: the tissue rips.
Materials: Fine sand, rough sand, clay, 3 cups of water, ruler, stream table, beaker, tissue, tape.
Procedure:
1. mix fine and rough sand with clay;
2. make the sand flat;
3. put the water in the beaker;
4. wait for the results
Observation: It made a huge River 0:20, 0:40 the water just went under the tissue. 1:34 The tissue got wet all over. 6:00 It went crazy (The tissue fell, the tapes are all around)
Video: https://youtu.be/6SWW01g-CtU
Conclusion: The hypothesis failed, but the experiment was a lot of fun, the water did not rip the tissue, but wet the tissue all over.
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