how to make a seismograph
can we make it with card board
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Materials
Medium-sized cardboard box
Paper or plastic cup
String
Marker
Scissors
Paper, or a very long printed receipt from a store
Tape
Coins, marbles, small rocks, or other small, heavy objects to use as weights
Another person to help
you search in google how to make your own seismograph you will get OK..
hope it's helpful to you
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