14. Your Own Volcano
You need a volcano made of plaster or a mound of dirt, a small container that goes into the volcano (you can use a baby food jar), red and yellow coloring, vinegar, baking soda, and dish soap.
To avoid cleaning the house after this experiment, you can go outside and make the volcano. Put the container in the volcano at the top and then add two spoonfuls of baking soda. Then add a spoonful of dish soap and the add a few drops of food coloring. Finally, add an ounce of vinegar into the container and observe how your volcano starts to work. In this experiment, you can see how a chemical reaction triggers a physical eruption.