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How to Make a Salt Volcano

By Max. D Gray. Updated: January 16, 2017
How to Make a Salt Volcano

If you are preparing a science project on volcanoes, you may need to build an explosive mound of clay. However, this type of volcano project is very common and does not seem original as a science experiment. One alternative is to make a salt volcano that shows how a volcano works without using the standard materials used in volcanoes with mud or paste.

You'll need:
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Steps to follow:
1

Once you have all of the material you need gathered, the first step to make a salt volcano is to mix 2 cups of flour, 2 cups of salt, 4 tablespoons of oil and 2 cups of water in a bowl. Stir the ingredients with your hands until the combination forms a consistent paste.

2

Put a few drops of food coloring into the mixture, preferably brown or red, to get the exterior color of a real volcano. Leave the dough to one side.

3

Place a piece of cardboard on a table. Stick a bottle of soft drink into the middle of the cardboard.

4

With the top up, make some small balls with newspaper and place them around the bottle, sticking them together to form a base, and also at the tip of the volcano to make a cone.

5

Stir the dough and place it over the paper balls and bottle to form the outer shell of your volcano. Mold the dough gently and smoothly. Make a hole in the center of the dough to expose the top of the bottle of soft drink.

How to Make a Salt Volcano - Step 5
6

Now you have to paint the volcano dough to make it more real. You can use images of volcanoes to help you or draw a design you like. When you've finish painting let it dry for a full day.

How to Make a Salt Volcano - Step 6
7

Now you should add the following to the bottle: a tablespoon of washing up liquid and a tablespoon of bicarbonate of soda along with a little red food coloring and a cup of water. When you're ready for the lava to erupt add vinegar to the bottle, quickly step back and wait for the results.

How to Make a Salt Volcano - Step 7
8

Now you know how to make a salt volcano you may also enjoy making these science experiments:

If you want to read similar articles to How to Make a Salt Volcano, we recommend you visit our Hobbies & Science category.

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