How to Make Volcanoes Out of Flour

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Creating a volcano out of flour is a basic Earth science project that can be fun for adults and children. The flour creates a base for the volcanic eruption. You can form it into a dough for a hard surface or leave it as soft flour to capture the spitting effect of the eruption. Either way, the project can be a fun way to learn about natural events.

Things You'll Need

  • Scissors or knife
  • Small balloon
  • Small box
  • 3 cups flour
  • 1 cup salt
  • 2 tablespoons oil
  • Water
  • Plastic 1 liter bottle
  • Dishwasher soap
  • Food coloring
  • Vinegar
  • Aluminum foil
  • 3 tablespoons baking soda

Balloon

  • Inflate a balloon to the size of a softball. The larger you make the balloon, the more flour you will need, and the larger the volcano will be.

  • Put the balloon in a snug box, and bury it in flour. It should look like a white mountain.

  • Stab or cut the balloon with a knife or scissors. This will cause the air to release and blow out the flour like a spitting volcano. The structure will collapse and form a crater in the center of the flour mountain.

Cone

  • Mix flour, salt, oil and water until you have a stiff dough.

  • Fill a plastic bottle with food coloring and warm water. Place it in the middle of a sheet of aluminum foil.

  • Form the dough around the bottle to make it look like a volcano. Finish this before the water in the bottle is cool.

  • Turn off the bottle cap, and add dishwasher soap and baking soda. Gradually pour vinegar into the bottle for an eruption.

References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
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