Parents will inhale in fear at this very word. Yes, it can be messy. Yes, it’s likely to end up on the bottom of your shoe once your child has finished playing with it. BUT, there’s a reason that children continue to woop in joy at the word ‘slime’, because oh boy is it fun. Luckily, I am something of a slime expert at S&G and I’m about to impart on you all my slime based wisdom.
Ingredients and kit needed:
- PVA glue
- Bicarbonate of soda
- Food colouring
- Shaving foam
- Wet wipes
- Blue roll
Follow these steps to create the perfect slime:
Step 1 - Clear your area of any valuable items that you want to protect from slime and lay down a wipeable tablecloth. Wear clothes you don’t mind getting slime-y (although I can assure you it does come out in the wash).
Step 2 - Get your bowl & spoon at the ready. These ones from IKEA are the ones we use. The plastic is the best material for making sure you don’t waste any slime, like you will with a paper one - and let’s not risk your fave ceramic bowl breaking with enthusiastic stirring.
Step 3 - Fill the bowl with approx 75 ml of PVA glue. If you go up to 100 ml you’ll get more slime, however it will take longer and it’s more likely to spill out the bowl. These bottles from Amazon work a treat.
Step 4 - Add 1 tsp of bicarbonate of soda and stir. This helps the slime to firm up - more can be added later if your slime is too runny.
Step 5 - (The fun bit!) Add food colouring & glitter to make your slime look stunning. Will you go for a classic bogie coloured green? Or a unicorn poop pink? Give this a good stir in too.
Step 6 - The magic ingredient: activator. You can use eye contact-lense solution (ONLY if it contains boric acid, otherwise it won’t work). However for ease, the Elmer’s Glue Slime Magical Liquid is a tried & tested win. The key to adding this is to do so gradually. A squirt at a time and then a lot of mixing. Honestly, it will be a workout so be prepared. Often the reason that slime doesn’t form is due to feeble stirring. Don’t let this be you. This is also the reason that we suggest this activity for ages 7+ as younger children may find this step difficult.
Step 7 - Continue to add activator and mix. With a strong stir, this should take about 5 minutes. To give you an idea, 1 bottle of Magical Liquid makes 4-5 slime batches, so you do have to use a lot. Just gradually, or it will be a gross slimy mess.
Step 8 - OPTIONAL you can add a few squeezes of shaving foam to make fluffy slime. It’s tempting to go crazy with this, but again just add a bit at a time before mess ensues (or before Dad’s shaving foam stash disappears).
Step 9 - Hopefully by this time your slime is looking and feeling very much like slime. It should pull away from the sides of the bowl and hold its shape as you stir. If so, this is when you can take a big breath in and brace yourself to get it INTO YOUR HANDS! This is best done with a partner next to you, ready to squeeze in some extra activator as you go. You want to start kneading the slime fairly vigorously in your hands, so that it forms into a big blob that you’ll eventually be able to play with.
TOP TIP: Slime can be cleaned up with slime! Once you’ve perfected your blob of slime, you can pick up all the little bits of slime trails in your bowl with it, so that technically there should be no mess left at all. NB: This doesn’t work with fabric /clothes.
Step 10 - Get it into a jar! This is especially important as a Science Party activity. Not all of your guests may get to the ‘into hands’ stage of slime. But they can still have fun stirring and prodding it… just in the safety of their jar. These round jars from Hobbycraft are ideal. You can also add a Step 0.5 where the children decorate their jars with stickers, pipe cleaners & names - to prevent any slime-jar-confusion. They can take these home at the end of the party.
TOP TIP: Have some wet wipes & blue roll on hand for sticky slimy fingers.