How To Make Slimy Ice Chalk - Free Science Experiments

How to Make Slimy Ice Chalk

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Back in the good old days we used to draw and create with chalk. 

Don’t seem to see it all that much nowadays but luckily it’s easy to make our own!

WARNING: This experiment is a messy one!

Slimy Ice Chalk - What Do I Need?

What Do I Need?

  • Cornflour
  • Glass of water
  • Food colouring
  • Ice cube tray
  • Spoon
  • Pipette (optional)
Slimy Ice Chalk - How Do I Do It?

How Do I Do It?

STEP1 - First up half fill your glass with cornflour.

STEP2 - Add water a little at a time to your half glass of cornflour and keep stirring it together. Keep doing this until your cornflour just becomes liquid.

STEP3 - Carefully pour your cornflour liquid into your ice cube tray.

STEP4 - Add food colouring to your ice cubes and mix thoroughly together.

STEP5 - Freeze your slime cubes overnight.

STEP6 - Experiment and play with your Slimy Ice Chalk!

Slimy Ice Chalk - What’s Going On?

What’s Going On?

Did you notice how when we mixed our cornflour and water together it wasn’t quite a liquid or a solid?

What we actually made is called a “non-Newtonian fluid”. Not quite a solid or liquid, somewhere in between. 

By freezing our Slimy Ice Chalk we changed the properties again and made it into a real solid and by adding food colouring we can have fun playing with our Slimy Ice Chalk.

WARNING: Slimy Ice Chalk is awesome but definitely messy.

Slimy Ice Chalk - Experiment Like A Real Scientist!
More Fun Please! - Experiment Like A Real Scientist!
  • What’s the perfect mixture of cornflour to water to make the perfect Slimy Ice Chalk?
  • How does making your chalk with hot or cold water change things?
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