Introduction: Chalkboard Slime

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About: Kids Invent Stuff is the YouTube channel where 4-11 year olds have the chance to get their invention ideas built by real engineers. We do this to get more primary school kids interested in engineering. Kids a…

Here's how to make your own chalkboard slime. It's an invention you can use to play with chemical reactions and to write fun messages.

Collect the following tools:

  • Bowl
  • GLoves
  • Measuring jug
  • Tablespoon
  • Teaspoon

You will need these ingredients:

  • PVA Glue
  • Saline solution with boric acid or sodium borate
  • Bicarbonate of soda
  • Non toxic and non flammable chalkboard/blackboard paint

Step 1: Measure 100ml of PVA Glue and Pour Into a Bowl.

Step 2: Measure 100ml of Cold Water and Mix It With the PVA Glue.

Step 3: Measure 2 Tablespoons of Chalkboard Paint and Mix With the Glue and Water.

Step 4: Add 1/2 a Teaspoon of Bicarbonate of Soda to the Mixture.

Step 5: Measure and Mix 2 Tablespoons of Saline Solution With Your Other Ingredients.

Step 6: Continue Stirring the Mixture Until It Starts to Thicken and Pull Away From the Bowl.

Step 7: Knead Your Slime. the Ingredients Need Time to React!

Step 8: Use Your Chalk Markers to Decorate and Play!