Steps . Mold your volcano around a 20-ounce soda bottle. (Follow step 1 above to create your volcano structure.) Mix 1 cup of vinegar, 1 cup of warm water, a teaspoon of dishwashing detergent, and ...

She told me the weirdest thing on Mars is a ginormous volcano. “Olympus Mons is the largest volcano in the solar system,” Cooper said. “It dwarfs Earth’s volcanoes!