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Purpose:
To see if we can make a substance that is both a solid and a liquid.
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Hypothesis:
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Materials:
Corn Starch, Water, Beaker, Stir Stick or Spoon
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Procedure:
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Pour 100ml of water into beaker.
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Slowly stir in 150lm to 200 ml of corn starch, a bit at a time.
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It is ready when you can tap the mixture and there is NO splatter.
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Do the following tasks with the mixture:
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Scoop up some of the mixture.
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Can you shape it into a ball?
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Dribble it off your fingers.
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Slap your hand down fast and hard onto the mixture. How do people react?
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The Science Behind "GOOP".
In a liquid, molecules move around a little. In a solid, molecules stay in a fixed position. Some substances have the properties of both a liquid and a solid. Squeezing this mixture turns it into a solid. You have just made a colloid. (In fact, most of the universe isn't a solid, liquid or gas. It is a plasma.)
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