My kids are REALLY into slime. Once we figured out how to make monster slime (you know, with Halloween coming up....or really anytime with these two hooligans), we found an activity that they could do for hours.
This monster slime is made with white glue, poster paint (food colouring works too), baking soda, and saline solution. Add in some googly eyes and you have monster slime!
Each kid got to pick which colour his monster slime would be.
Monster Slime Recipe
This monster slime recipe is super simple and it is borax-free. You do, however, need a saline solution that contains boric acid. That is what turns sticky goop into slime.
- about 1/2 cup PVA glue (i.e. white glue)
- 1/2 tsp baking soda
- green poster paint (finger paint) or food colouring - or any other colour that you want to make your monster slime
- 1/2 - 1 tbsp saline solution (i.e. contact lens solution) - it must contain boric acid or sodium borate
- googly eyes
How to Make Monster Slime
It's really easy to make monster slime. My kids did this in about 5 minutes, and then played with it for close to an hour afterwards.
- Mix your glue and baking soda together.
- Add some finger paint (about a tablespoon or so).
- Mix in the saline solution. This is what turns your gluey mess into slime. You'll know when the slime is coming together when it turns stringy.
- Add the googly eyes last.
Monster slime tip: the more saline you add, the more solid your slime will become. With 1/2 tbsp of saline solution, the slime is super sticky and goopy. With about 1 tbsp, it is stretchy and slimy but won't stick to your hands.
How to Turn Monster Slime into Bubble Slime
One thing that we love about this monster slime recipe is that if you stick a straw into your monster slime and blow, you can create giant bubbles!
This kept my kids occupied for a LONG time. Just stick a straw into your slime, hold the slime around the base of the straw to prevent air from escaping, and blow! Slime bubbles.
Rebecca is a mother of twin boys and a professional blogger. She loves to bake, knit, and run through the forest.