How to make your own mini volcano:
for the volcano-
a small water bottle
box and/or 9x13 pan or baking sheet
for the lava-
1/4 cup baking soda
1/4 cup white vinegar
squirt of dish soap
1/4 cup water
red food coloring
Add about 1/4 cup of baking soda to your "volcano".
In a measuring cup, mix the remaining ingredients together.
Slowly pout it into your volcano and watch it erupt!