Sudsy Slime activity - Fizzics Education

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# Sudsy Slime

You Will Need:

• 1.5 cups of hot water.
• Food colouring (Optional)
• 1 cup of soap flakes
• Electric beater or whisk
• Mixing bowl
• Safety goggles to avoid getting soap your eye

1

Pour the water and food colouring into the bowl and mix.

Add the soap flakes and mix with an electric beater on high until a thick foam is produced. This usually takes about five to ten minutes. Be careful, this foam expands exponentially.

2

Play with the soapy slime right away.

3

The more you whip the foam, the more puffed up the slime becomes!

Now let it setter for a few hours, its texture will change.

4

#### Get the Unit of Work on States of Matter here!

• What are the different states of matter?
• How does heat affect the size of materials?
• How does liquid nitrogen affect materials and much more!

Includes cross-curricular teaching ideas, student quizzes, a sample marking rubric, scope & sequences & more

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### How does soap turn into slime?

Whipping the hot soapy solution creates a foam, which is a colloidal dispersion of a gas in a liquid. The gas in this case is air and the liquid is the soapy solution. The resulting soapy foam is so dense it feels slimy to the touch! A small amount can easily fill a large tub, which makes it an inexpensive way to make mountains of it for the kids to play!

Get more slime recipes here!

### Variables to test

More on variables here

• Try different soap types.
• What happens if you use detergent instead?
• Vary the temperature of the water.
• Does slow or fast mixing make a difference?