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Want a scary something for your Halloween
party?
Have a look at this spooky experiment from The Kitchen Pantry
Scientist.
What you need:
- Gummy worms - you can get these from a supermarket or pick n
mix
- Scissors
- Baking soda
- Vinegar
- Water
- Clear glass
- Fork
What to do:
Make sure you ask an adult for help cutting up the gummy
worms.
- Cut the gummy worms in quarters lengthways.
- Put three tablespoons of baking soda into a cup of water and
stir.
- Put the gummy worms in the baking soda solution and let them
soak for 15 minutes.
- Fill the glass with vinegar. Use a fork to lift the worms out
of the baking soda solution and put them into the glass of
vinegar.
What can you see?
What's happening?
Your worms should start to float and move up and down. The
vinegar reacts with the baking soda to form carbon dioxide gas
bubbles on the worms. The carbon dioxide gas bubbles rise up
through the vinegar and cause the worms to wriggle. The worms will
wriggle until the reaction stops!
For more great Halloween experiments, go to The Kitchen Pantry
Scientist.