Ever wanted to build a mock volcano or to model how an eruption happens? Well it’s simple, and you probably already have everything at home.

The first step is to create the volcano model, which can easily be done with papier mâché. As most of those who took an arts class know, this is simply a proportional mix of torn old newspaper and a water-glue. This can get a bit messy, so find a clear area before starting or go outside.

The mâché model should look like a volcano mountain but be sure to leave space inside for a plastic or metal container to be placed. This is where the ‘lava’ material will flow from. This is the point at which one’s artistic side has to emerge – the exterior design should be painted to better reflect a real volcano.

Our volcano will work by the chemical reaction that takes place between baking soda and vinegar. The reaction works by first placing a few teaspoons of baking soda in the container, depending on its size. It’s important to not add vinegar until the end. A spoonful or so of soap should then be added. This will help create the froth of the overflowing liquid.

The next thing to do is to give the mixture its authentic orange-metallic colour, which can easily be achieved by mixing about five drops of red and yellow food colouring into the liquid. Add a small amount of water and stir.

Finally, to make the volcano erupt, you just need to pour in some vinegar. The recipe can easily be scaled up for larger demonstrations. However, one thing that can be changed for greater effect is a delayed eruption.

By exchanging the order to the vinegar and the baking soda, you can wrap the baking soda in a piece of tissue and throw that into the container. In this way there will be a short delay for the eruption to take place.

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