Slime Science!

Slime is the perfect mix of fun and science! There are so many different types of slime and millions of ways to make it.

Today we have a simple 3 ingredient slime with lots of add in extras!

NOTE: ingredient amounts can vary, a little bit of experimenting will be needed.


Stiffer slime that holds shape but cannot stretch as far = more contact solution

Looser slime that stretches but doesn’t hold its shape = less contact solution


Simple Slime Ingredients

  • 2 oz (about half a bottle) of elmers glue
  • 1/2 tsp of baking soda
  • 1-3 tbsp of contact solution (must contain boric acid and sodium borate, it will be listed in the ingredients)

Optional ingredients:

  • Glitter
  • food coloring
  • hand lotion
  • shaving cream
  • essential oils


Step by step:

1. Add glue to clean bowl









2. Add baking soda to glue and mix









3. Add glitter and food coloring (I forgot and it made it harder to mix later!)

4. Add 1 tablespoon of contact solution at a time slowly, mix between pours.

Be sure to add little by little or you risk it seizing up.

You are looking for the slime to start forming webs and pulling away from the edge of the bowl.













5. Add in your remaining optional ingredients one at a time

Shaving cream and Conditioner for smoother slime and a nice smell!

Glitter for some nice shimmer!












Once you have it ready, feel free to take it out of the bowl and enjoy!

Ooo snow slime! Pretty!

How does it work?

Slime is made of polymers found in the glue. They look like long strands of spaghetti that slide easily against each other. Contact solution mixed with the baking soda creates a Borate ion. The borate ion links polymer strands together making it so they cannot move around as easily. This is why you need to slowly add the contact solution, you add too much borax and all of the polymer strands will stick together and not move at all!

For more information on the science check out the American Chemistry Societies website!

And keep checking in on the Santa Clarita Library website, blog and other social media for more updates on services and lots of activities for the whole family.


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