Intergalactic Bath Bomb

Bath bombs can have a wide range of ingredients, including bath salts (which can help sooth muscles), food coloring, fragrances and other components.  There are, however, a few key ingredients that most homemade recipes have: baking soda and citric acid.  Why is this?  When baking soda and citric acid are mixed and are then put in water, they undergo a chemical reaction.  The reaction produces lots of bubbles, which you see as the bath bomb dissolves in the water.  These bubbles that make the water become so fizzy are made of carbon dioxide gas.

Another ingredient that is often used in homemade bath bombs is cornstarch.  This ingredient can act as a dry "filler" that gets mixed in with the reactive baking soda and citric acid in the bath bombs.  In this activity you'll explore how changing the amount of cornstarch filler affects how fizzy the bath bombs turn out and you'll figure out what goes into making the most impressive bath bomb.

How to use:

Run the bath and get ready to soak among the stars. Gently place into warm bath water to unleash a galaxy of refreshing peppermint oil, cobalt blue clouds and shimmering stardust.

How to store:

Store in a cool, dry place until you're ready for a bath that is out of this world.

Ingredients

Sodium Bicarbonate, Citric Acid, Popping Candy, Perfume, Cream of Tartar, Water (Aqua), Peppermint Oil, Grapefruit Oil, Vetivert Oil, Cedarwood Oil, Titanium Dioxide, Cornstarch, Sodium Laureth Sulfate, Lauryl Betaine, Synthetic Fluorphlogopite, Tin Oxide, Silica, Dipropylene Glycol.