How much vinegar do you put in a baking soda volcano?

To create a baking soda volcano, you will need baking soda, vinegar, dish soap, and optionally some food coloring or eruption gel. The amount of vinegar you use will depend on the size of your baking soda mound and the desired eruption effect. Here's a general guideline:

For small eruptions: Use 1/4 to 1/3 cup of vinegar per baking soda mound.

For medium eruptions: Use 1/2 to 1 cup of vinegar per baking soda mound.

For larger eruptions: Use 1 1/2 to 2 cups of vinegar per baking soda mound.

Remember to add the vinegar carefully, pouring it slowly down the sides of the baking soda mound to create the eruption effect. You may need to adjust the amount of vinegar based on the reaction and how much baking soda you are using. The dish soap helps create a more dramatic eruption, while food coloring or eruption gel can add color and visual appeal to the experiment.