How to Build an Erupting Volcano

Have fun and make a mess, all in the name of science.

You will need

  • 6 c. flour
  • 2 c. salt
  • 1 c. water
  • Small plastic bottle
  • Baking sheet
  • Acrylic paint
  • Paint brushes
  • 1/2 c. vinegar
  • 1 tsp. red food coloring
  • Dishwashing detergent
  • Tissue
  • 3-4 tbsp. baking soda
  • Cardboard (optional)
  • Glue (optional)
  • Toy trees (optional)

Step 1 Make clay Make homemade clay by mixing the flour and salt in a bowl, and then adding water until the mixture is smooth in consistency.

Step 2 Center bottle Center the bottle on the baking sheet.

Step 3 Shape volcano Shape the clay around the bottle to make it look like a volcano. Start at the bottom, creating a wide base, and work toward the top. Make sure to leave the mouth open.

Step 4 Paint the volcano Paint the volcano with the acrylic paint to make it look more realistic.

Step 5 Add liquids Pour the vinegar, red food coloring, and a few drops of dishwashing detergent into the bottle.

Step 6 Add baking soda Fold the baking soda into a tissue and drop it into the bottle, and watch in wonder as your volcano erupts.