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Halloween Activity: Halloween Foam Explosion

What you will need:

  • Newspaper to lay down on a flat, hard surface (not required but suggested in order to prevent a big mess!)sciencebob foam experiment 300x225
  • A two litre soda bottle (emptied out)
  • 1 teaspoon of yeast
  • 2 tablespoons of warm water
  • A funnel (this again is to prevent a large mess!)
  • 1/2 cup of hydrogen peroxide (must be at least 6%)
  • Food colouring (not required but makes the experiment more fun!)
  • Dishwashing soap
  • A bowl
  • A spoon

What you will need to do:

  • Lay down your newspaper on a flat and hard surface
  • Place the bottle down on the sheets of newspaper
  • In your bowl, mix together your teaspoon of yeast and your two tablespoons of warm water (mix with a spoon until bubbles form)
  • Using the funnel, pour the hydrogen peroxide into the empty soda bottle
  • Next, you can add some food colouring into the bottle. In light of today’s date (Halloween 2014!) use some fun, spooky colours like orange, green, black
  • Next, add a touch of dishwashing soap into the bottle
  • Lastly, you will need to add the mixture of yeast and water from the bowl into the bottle (using a funnel will help)

Watch as your experiment comes to life as the substances mix together and rise up and out of the bottle!

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