Introduction: Enjoy Science With Bath Bombs

Learn how to make a bath bomb and the science behind the chemical reaction. Through this wonderful Instructable you will be able to touch and feel carbon dioxide through a simple chemical reaction.

Bath bombs are beneficial because they make your skin soft and smooth. Dry skin can be be hydrated using a bath bomb.

The reason bath bombs have a fizzing reaction when put in water is because when mixed with a mixture of baking soda and citric acid they create a chemical reaction. These bubbles that make the water become so fizzy are made of carbon dioxide gas.

Bath bombs can be expensive at stores and are easy to make at home. Also by making your own bath bomb you can choose the color and scent unlike buying your own where the color and scent are already picked at a store. Bath bombs can be used for anyone that wants to be relaxed and have hydrated skin.

And those who just want to have a little fun wit a simple science experiment.

Step 1: Supplies

The supplies needed to make a bath bomb are,,,

  • epsom salt ( $5 )
  • citric acid( $7 )
  • essential oils ($2-3 )
  • food coloring ( $4 )
  • molds ( $7 )
  • Baking soda ($1 )
  • Cornstarch ($1 )
  • Vegetable oil ($2 )
  • Food coloring ($1-2)
  • Glitter (optional) ($1)
  • water
  • Small object (optional)

These supplies can make many bath bombs. You can get these supplies from amazon, the grocery store and the dollar store.

Step 2: Tools

The tools needed to make a bath bomb are:

  • Bowl
  • Spoon
  • Molds

These tools are used to mix and mold the product.

Step 3: Dry Stuff

You will need to mix all of the dry ingredients together in one bowl the supplies needed are:

  • 8oz of baking soda
  • 4oz of epsom salt
  • 4oz of cornstarch
  • 4oz of citric acid

Step 4: Liquid Stuff

In a separate bowl mix all of the we ingredients for this you will need:

  • 2.5 tablespoons of vegetable oil
  • 1 tablespoon of water
  • 4-6 drops of food coloring
  • 2 teaspoons of essential oil

Step 5: Combine Dry Stuff With Liquid Stuff

Pour the liquid mixture into the dry mixture while mixing the dry one. Mix until there is no chunks.The mixture should be damp if not wet enough add more water or vegetable oil

Step 6: Fill Molds

Tightly pack the damp mixture into bath bomb molds and add in object before pressing molds together tightly and removing any excess mixture.

Step 7: Set and Forget

Let mixture in molds dry for at least a day and then gently remove bath bomb from molds and they are ready to use!

Step 8: Bomb Your Bath

For the purposes of this Instructable we were not about to show someone in the bath. That would just be Crazy right?

But, now you can drop a bomb in your bath water and lay back and relax. Let the chemical reaction of your bath bomb and water sooth and comfort your skin. Feel and touch the carbon dioxide in the water.

Come out feeling relaxed and refreshed. Smell good too!


Another great instructable by the DIS DIY Makers at MyWlakeTech

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