MAKING BUBBLE BOMB
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Materials:
water measuring cup zipper-lock plastic sandwich bags paper towel tablespoon baking soda vinegar |
WHAT TO DO:
1-Tear a paper towel into a square that measures about
10cmx10cm. Put 1 1/2 tablespoons of baking soda in the centre of the square,
then fold the square as shown in the picture, with the baking soda inside. This
is your "time-release packet."
2-Pour into your plastic bag: 1/2 cup of vinegar &
1/4 cup of warm water
3-Now here's the tricky part. You need to drop the
time-release packet into the vinegar and zip the bag closed before the fizzing
gets out of control. One way or another, get the packet in the vinegar and zip
the bag closed.
4-Shake the bag a little, put it in the sink or on the
ground, and stand back! The bag will puff up dramatically and pop with a bang.
USE
Any baked goods that rise
rely on carbon dioxide bubbles to get the job done. You can make these bubbles
either by using yeast or by using the vinegar-soda (acid-base) reaction like
you did in the experiment.
Another method that cooks use to make something rise is a combination of baking soda and an acidic ingredient, like orange juice or buttermilk. This is the same kind of chemical reaction that took place in your bubble bomb.
Next time someone you know is baking, check the recipe to see if you can figure out what ingredients make the bubbles that make the cake or bread or cookies rise.
Another method that cooks use to make something rise is a combination of baking soda and an acidic ingredient, like orange juice or buttermilk. This is the same kind of chemical reaction that took place in your bubble bomb.
Next time someone you know is baking, check the recipe to see if you can figure out what ingredients make the bubbles that make the cake or bread or cookies rise.
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