Science Seekers: Hidden in Rocks Investigation 3 Thank you, Mrs. Knowles, for all your help! |
Erosion happens when wind and water pick up sediments that have worn off rock and carry them away. We showed erosion with our model. ...Ashlie | In the experiment we poured water on the sand. The water took the sand away. Our model started to look like the Grand Canyon. ...Taylor | |
After two pours the sand was getting an impression on it. After 4 pours the sand is getting wetter. After 6 pours water started going into the bucket. We could see the fossil and a little river after 8 pours. ...Nolan |
As we dripped water on the sand the sand moved and dripped out of the tray. Our model looks almost the same as a river canyon, but our is made of sand. ...Lauren | We figured that if each pour stands for 1 million years that it would take six million years to start a canyon and eight million years for a fossil to show up. ...Cameron | |
Rain
water can uncover a fossil inside a solid rock by wearing away the
rock surrounding the fossil. ....Brooke Ann
After 14 pours we could see most of the fossil and the sand made an island. ....Alan |
The
perfect fossil site is one where pieces of fossil are sticking out of
bare rock on the ground or in a hillside. It would probably be
sedimentary rock. ...Maeve
The Law of Superposition is the rule that states that in layers of sedimentary rock, the rock that was formed first is on the bottom. ...Jeremy |
Jessie did very well today. He must have liked the group composition. ...Mrs. Eldridge
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After 6 pours the river has gotten bigger and you could see part of the fossil. After 12 pours the fossil was uncovered. ...Michael M.
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