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Science Experiment:

How to Build a


Welcome to "How To Build A Volcano"!

Ages 5+ ( with adult supervision )

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If you are looking for a fun science project, this demonstration is for you. This is a classic experiment that will give you an idea of what a volcano looks like when it erupts. We recommend adult supervision during this experiment; it can get messy if unsupervised. In order to complete this experiment, you will need the following ingredients:


Once you have assembled all of the ingredients, you are ready to begin. After your experiment is completed, do not forget about the quiz at the end. Have fun!

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Lesson 1: Making the Dough

First, you need to make the dough. To do this, combine the flour, salt, and oil with two cups of water. When mixing the dough, the dough should be stiff and smooth. Add more water or flour as needed to get the right consistency.

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Lesson 2: Volcano Construction

Next, you need to place the bottle, with the cap on, in the middle of the pan. You can now form your volcano around the bottle using the dough you have made. If you take your time, you can create a great looking volcano. You are now ready for the most exciting step in your volcano creation.

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Lesson 3: Volcano Eruption

Remove the bottle cap. Fill the bottle three quarters of the way up with water and 5 - 10 drops of red food coloring. Then, add 6 drops of dish washing soap and 2 tablespoons of baking soda. Now, it is time for the fun part. Slowly, pour the vinegar into the bottle and watch your volcano come to life.

How to Build a Volcano Quiz

Congratulations!! You have completed the 'How to Build a Volcano' experiment.

Take the quiz to see how much you can remember.

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Question 1:

What is the first step in building a volcano?

  • answer one Taking your dog for a walk

  • answer two Making the dough

  • answer three Placing a 2 liter bottle in the middle of the pan

Question 2:

When making the dough, what ingredients can you add to get the right consistency?

  • answer one Milk and cookies

  • answer two Vinegar and dish washing soap

  • answer three Water and flour

Question 3:

What item is used for the center of the volcano?

  • answer one 2 liter plastic bottle

  • answer two Large cooking pan

  • answer three The babysitter

Question 4:

What is the final ingredient added to make the volcano erupt?

  • answer one Salt

  • answer two Water

  • answer three Vinegar


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