Objective

By the end of this lesson, you will be able to make your own bath bombs and understand the science behind them.

Materials and Prep

Materials needed: baking soda, citric acid, cornstarch, Epsom salt, food coloring, essential oils, water, mixing bowl, molds (can be silicone ice cube trays or plastic Easter eggs), and a spray bottle.

Before the lesson, make sure to have all the materials ready and set up a workspace that is easy to clean.

Activities

1. Mix the dry ingredients (baking soda, citric acid, cornstarch, and Epsom salt) in a bowl.

2. Add a few drops of food coloring and a few drops of essential oil to the mixture. Mix well.

3. Spray the mixture lightly with water while stirring until it holds together when squeezed in your hand.

4. Pack the mixture into the molds and let them dry for 24 hours.

5. Once dry, remove the bath bombs from the molds and enjoy your fizzy creations in the bath!

Kindergarten Grade Talking Points

• "Today we are going to make our own bath bombs. We will mix special ingredients to create something fun for bath time."
• "We will use colors and scents to make the bath bombs smell nice and look pretty."
• "When we add the bath bombs to water, they will fizz and make the bath bubbly, just like magic!"