Make a papier mâché volcano that actually erupts

This experiment rocks!

Make a papier mâché volcano that actually explodes!

Make a spectacular volcano using our simple paper mache recipe – then, add the ingredients to make your lava, and stand back to watch some incredible science magic.

The papier-mâché and paint will both take a while to dry, so it's best to spread this activity out over a few days. We promise it'll be worth the wait once you see the results!

You will need

  • An empty plastic bottle
  • Cardboard
  • Sticky tape
  • Foil
  • Paper-mache mix
  • Paints (red, orange, yellow, green, blue)
  • Paintbrush
  • 2-3 tsps bicarbonate of soda
  • Red floor colouring
  • Vinegar


Step 1

How to make a paper mache volcano

Attach a plastic bottle to a large square of cardboard using sticky tape.

Step 2

Scrunch up foil and create a mountain shape around the bottle.

Step 3

How to make a paper mache volcano

Make the papier mâché mixture and apply layers of newspaper strips with a paintbrush.

Step 4

How to make a paper mache volcano

Once fully dry, paint the volcano. We added green grass, grey rock, and red and yellow spewing lava.

Step 5

How to make a paper mache volcano

Now for the exciting part! Add 2-3 tsps of bicarbonate of soda, and a few drops of red food colouring.

Step 6

Paper mache volcano

Pour in the vinegar, then stand back and watch the volcano erupt!

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Learning guide

This exciting activity combines art and science with explosive results! Your child can get creative making the volcano look fantastic, as well as learning the craft of papier-mâché. Then, they can watch a chemical reaction when vinegar and bicarbonate of soda combine. Why not use this activity as a springboard for your child to find out some fun volcano facts? And don't forget there are lots more fun ways to learn on the Giggly Shop.