How to Make Your Own Bath Bombs

Here are the ingredients you need to make these awesome bath bomb:
-1 2/3 cups Baking Soda 

-1/2 cup Citric Acid

-1/2 cup Corn Flour (cornstarch)

-1/2 cup Epsom Salts

-1 tsp Water

-2 tsp Essential Oil

-3 tsp Oil (like olive oil)

-Food Coloring