Experience Science: Halloween Slime-Fest

By October 31, 2016Blog, Education, News

What better way to play on this spooky holiday than to make your own slime.

An adorable preschooler with wild hair and coke-bottle glasses delightedly handling a bowl of yucky, green slime.

Kids, have a grown up gather up all your supplies and get everything ready.


What You Will Need:

  • Bottle of white school craft glue
  • Tablespoon (for measuring)
  • Plastic Spoon (for stirring)
  • Water
  • 2 disposable cups
  • Food coloring (We recommend green or orange for Halloween)
  • Borax Powder (available near laundry detergent at grocery stores)


Step 1:

Fill one small cup with water and add a teaspoon full of Borax powder and stir. One it is stirred, set the cup to the side.

Step 2:

Fill the 2nd small cup with approximately 1 inch of the white craft glue.

Step 3:

Add three tablespoons of water to the cup of craft glue and stir.

Step 4:

Add a few drops of the food coloring to the water and glue mixture and stir until mixed well.

Step 5:

Add one teaspoon of the Borax and water mixture from the 1st cup to the 2nd cup and stir well. Watch as the slime takes form!

Step 6:

Once the contents are mixed well, let it stand for approximately 30 seconds. When the time is up, remove your slime from the spoon and play!


Safety: Kids, please have adult supervision while creating your Halloween slime. Also, keep the slime away from your mouth and hair!

A preteen having fun with his preschool brother in a chemistry lab, both working as "mad scientists."

What’s the Science?

What you have created is called a polymer. It contains properties of both a solid and a liquid. It has the ability to take the shape of a container it sits in, like a liquid, but you can also pick it up and hold it in your hands, like a solid.

Solid molecules are tight together, liquid molecules spread out and break apart. Our Slime (polymer) molecules chain themselves together and can stretch and bend like a chain which is a special Trick (see what we did there ;).

Some other examples of polymers include: rubber bands, plastic bottles, tennis shoe soles, Jell-O, and even gum!


Be sure to keep your Slime (polymer) in a sealed plastic bag when you aren’t playing with it!