Form the Chemical Volcano
The cinder cone of the volcano is formed using clay. You'll need a lot less 'volcano' material if you make a general volcano shape out of paper and then just cover it with clay.
Erupting Volcano Ingredients
1:- warm water
2:- baking soda
3:- liquid dishwashing detergent
4:- vinegar
5:- You can color the lava by adding food coloring or powdered drink mix
Make the Chemical Volcano Erupt
To cause an eruption, fill the bottle most of the way full with warm water. Warm water produces a better eruption than cold water because the higher temperature increases the rate of the chemical reaction that makes the lava. Add a squirt of dishwashing liquid, some food coloring to color your lava, and a few spoonfuls of baking soda. When you're ready to start the eruption, pour vinegar into the volcano.
How the Chemical Volcano Works
The baking soda is sodium bicarbonate. The vinegar is weak acetic acid. The two chemicals mix together to form carbon dioxide gas. The carbon dioxide tries to escape the volcano in much the same way as it would if you had shaken a bottle of soda and then opened it. The dishwashing liquid traps the bubbles of gas, forming your lava. Gases and molten rock escape from a real volcano in much the same way as the carbon dioxide and water-based lava are forced out of the model volcano. You can recharge the volcano by adding more baking soda and vinegar so you can have as many eruptions as you like.