Halloween is a great time to get your kids interested in science. When else does it make sense to make slime and goop and witch’s brews? They’re not just fun to play with; they’ll teach your kids about how the world works, too. Chemistry and physics can be exciting!

Whether you’re throwing a kids’ Halloween party or just want some spooky educational experiments, we’ve got you covered.

Make Some Halloween Slime

Slime is the classic spooky science-y experiment for good reason: it’s easy, sticky, icky, and oh so fun to play with! You can make slime yourself with these borax-free slime recipes–make a bunch of different coloured batches with food colouring! You can also purchase DIY slime kits which contain everything you’ll need, as well as instructions. Want something even cooler? Make bubbling slime with xantham gum, baking soda, and vinegar!

Ooh, Ooze!

Ooze is a bit more foamy and a bit less sticky than slime. Think about those vinegar and baking soda volcanoes you used to make as a kid, only with a bit more structure–that’s ooze! You can make ooze with hydrogen peroxide and yeast, both easily available ingredients. For your little witch or wizard, make this magical brew in a cauldron or beaker. Or, if you’d prefer to scare your neighbours, make an oozing pumpkin for your front steps!

Dancing Ghosts

Teach your children about static electricity by making a ghost dance! Science Bob has the scoop; all you need is a balloon, your child’s hair (to create the static charge), and a ghost made out of tissue paper. Oh, and maybe some spooky tunes to add to the effect.

Glowing Gulps

With a little tonic water and a black light, you can make glowing liquids that are safe to drink. Tonic water contains quinine, which has been used historically to prevent malaria. British colonists in India would drink gin and tonics for this very reason (the gin makes the tonic a bit more exciting.) Quinine will fluoresce under a black light, which just means that it glows! You can usually get a black light at a party supply store.

Fake Blood

If you’ve got older kiddos, make some fake blood with them! Steve Spangler Science has a bunch of recipes. It’ll add some amazing colour to a scary Halloween costume!

Galaxy Play Dough

If you’d prefer to make something a little less scary, try making some galaxy play dough. By adding glitter and glycerin, you’ll have a shiny, sparkly dough to pull, stretch, and play with.