Entertain and educate your children by making your own volcano that erupts. Paper mache is an enjoyable, easy hobby, and is a fun way to build your own volcano. Using items and ingredients found around your home, you will soon have an erupting volcano. A child could follow these simple instructions for a school project, or just for fun.
Place the bottle upright in the centre of the cardboard piece, and attach several strips of masking tape from the top of the bottle the edge.
Put three parts water and one part flour in the bowl, and stir until you get a smooth, creamy mixture.
Dip the newspaper strips in the mixture, remove the excess by running the strips between your fingers, and drape them over the strips of masking tape.
After applying all of the strips of newspaper, allow to dry overnight, then paint the volcano.
Pour the vinegar into the top of the volcano, put in about 10 drops of food colouring, and pour in all the baking soda at once. Then watch your volcano "erupt."