Slime, putty, gak – wonderful gooey stuff. Making your own is fun and a real chemistry lesson. You can add a bit physics into the equation by making magnetic silly putty!
Gak, slime and putty are stretchy, moldable, sticky and bouncy – the scientific name for these is “polymers”.
- Putty is more pliable and less sticky than slime. Putty can bounce and you can stretch it.
- Slime is gloopy and sticky.
- Gak acts like a liquid until to put pressure on it. Suddenly it will firm up and resist the pressure.
Glow in the dark slime is sure to capture everyone’s attention.
If you are looking for a recipe that uses ingredients that you may have in the cupboard, this recipe for homemade Goop contains cornstarch, baking soda and water. This recipe also invites you to experiment with the ingredients. Does adding more cornstarch make it more or less gooey?
Many recipes uses Borax but you can also make Gak by using Elmers glue.
And you can make slime with glue and washing detergents. The site Wonder How To has lots of videos with recipes. Warmly recommend