This is a fast and easy volcano to make because it uses posterboard rather than plaster of paris or paper mache. If you just want a nice looking volcano project without all the mess and hassle of gooping with plaster then this project is perfect for you. It is much easier to make and you can have it built in half an hour and it will be ready for the fun of painting and erupting.
Eyedropper Volcanos for the Kids. Pile baking soda on a pan. Put vinegar in little bowls and add some food coloring. Kids fill a dropper w/the liquid and drop onto the baking soda, making little volcanoes.