Seismographs are very interesting. They record all the "jiggles" that go on with our earth. You, too, can make and record your own "jiggles." Here is what you do: You need a shoebox, pen, tape, paper, string and a tuna can to keep the box from falling. The pen will make it fall, otherwise. Put the string on the pen, and tape the string on the box.
We would pull the paper while other kids were shaking the table. |  |
Here is a closer look at how we pulled the paper while the table was shaken. |
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