Discrepant Event: Homemade Volcano

Homemade Volcano

Kids love to make a homemade volcano and they'll want  to do it over and over again.  

Ingredients:

1.    Plasticine

2.    Baking soda

3.    Food colouring (to make it interesting)

4.    Vinegar

Method:

1. Make volcano out of plasticine.

2.    Place 2 teaspoons of baking soda in the bottom of the volcano.

3.    Predict what you think will happen before you add vinegar.

4.    Pour 2 teaspoons vinegar in the volcano.

Answer:

The mixture of the baking soda and vinegar forms a gas that raises up and out of the volcano.

We use baking soda in cooking, such as baking cakes and cookies. The baking soda  makes baked goods rise because the bubbles burst in the heat.