How Can I Make A Volcano For 3rd Grade Science Project?

Well theres the simple one like with vinegar an you have to make the compound/structure
6 cups of flour
2 cups of salt
4 tablespoons of oil
2 cups of water
^^^^^^^^^^^^^^^^^^^ = structure
half a bottle of water (VERY WARM!!!)
food coloring (red)
detergent
baking soda
stand back and putin vinegar!!!