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)
- 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.
5. Add in your remaining optional ingredients one at a time
Once you have it ready, feel free to take it out of the bowl and enjoy!
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!