Experiments to do at
Home
Dry Paper
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Materials: Clear drinking
glass, a piece of paper or tissue, and a bucket.
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NOTE: The bucket must
be taller than the glass and the paper must fit half way up the drinking
glass.
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Experiment: Fill the
bucket between halfway and 3 quarters of the way
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Make the paper into a ball and put
it in the bottom of the drinking glass.
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Turn the glass upside down. The paper
ball must stay in the bottom of the glass. If it falls out make the paper
ball bigger.
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Hold the glass upside down and put
it in the bucket that has water in it. Make sure the glass touches the
bottom of the bucket.
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Pull the glass up but DO NOT TILT the
glass as you pull it up.
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Examine the paper. It should be dry
(if you did it right).
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Why: The glass is filled
with paper and air. The air prevents the water from going into the glass
keeping the paper dry.
No Room
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Materials: cola bottle
or any other small mouthed bottle, and a balloon
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NOTE: The balloon mouth must fit over
the bottle mouth.
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Experiment:Hold on to
the top of the bottle and push the balloon inside the bottle.
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Stretch the top (or part you blow in
to) over the mouth of the bottle.
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Try to inflate the balloon.
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The balloon only expands slightly (if
you did it right).
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Why: The bottle is filled
with air molecules. Blowing in to the balloon makes the air molecules go
closer together. Making the balloon inflate only a little.
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All experiments from the book Janice
VanCleaves Chemistry for every kid.
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