I absolutely loved this post on glow-in-the-dark play dough from Sun Hats and Wellie Boots, so we thought we'd try the same technique to make glow-in-the-dark oobleck!
All you need to do is make oobleck and add a little child friendly glow in the dark paint.
What you need
- a big bowl
- cornflour
- water
- food colouring (optional )
- child friendly glow in the dark paint
Instructions
Fill a cup with cornflour and pour into the bowl.
Add water very slowly, mixing as the water is added.
Add a little food colouring and glow in the dark paint.
Spooky!!!!

Make sure you check out some of my other Halloween Science Ideas

Last Updated on October 2, 2024 by Emma Vanstone
Amanda @ Having Fun says
Great idea - I wondered how you would make it glow in the dark. Can't wait to make some with the girls. Hope my link's ok - does it count as biology?! Amanda x
maggy, red ted art says
We LOVED Sun Hats and Wellieboot's playdough idea and we LOVE your goo... perfect and fun and great and and and...
Thanks as always for linking to Kids Get Crafty!
Maggy
TheBoyandMe says
Thank God it's not eggs for a change! A brilliant idea, will try it out.
ScienceSparks says
Cheeky!! x
critters and crayons says
Cool! My kids are fascinated with glow in the dark things after we did a glow in the dark bath with some bracelets thrown in (after inspecting for leaks, first!) haha! Thanks!
ghostwritermummy says
What a great idea! My two are going to love this!
XxX
Aimee says
Awesome idea- I just pinned it on Pinterest! Thank you for sharing this with us on The Sunday Showcase
ScienceSparks says
Wow, thank you so much. Glad you like it. x
Rebecca says
Ooooooh got to give that a go.
creativejewishmom/sara says
this is great! thanks so much for sharing on Craft Schooling Sunday!
Justine says
I just discovered your site through Red Ted! My little guy loves any glow in the dark activity, and I can't wait to try this one out! I'm your newest follower!
ScienceSparks says
so glad you like us! x
Zoe says
Glow in the dark stuff is always so much fun. Here's a post we did on glowing in the dark: http://www.playingbythebook.net/2010/06/14/glowing-in-the-dark/
Coombemill - Fiona says
I remember our playgroup leader doing this with cornflour but with out the glow in the dark bit which adds another dimension. Great activity.
ScienceSparks says
Thank you. x
Susan Mann says
Fab idea. x
ScienceSparks says
Thanks susan
maggy, red ted art says
Oooh that looks FABULOUS fun! 🙂
ScienceSparks says
Thanks Maggy
maggy, red ted art says
And Thanks for sharing on Kids Get Crafty!
Maggy
Mary says
We have made goo a couple of times although I have to admit that apparently I like playing with it more than the kids sometimes. I just bought glow in the dark paint and considering how much my kids like glow sticks I think they're going to go wild for glow in the dark goo!
ScienceSparks says
I love how it feels!
Bethany @ No Twiddle Twaddle says
I was excited as soon as I saw your post was called "spooky glow in the dark goo". It just sounds fun. : ) We made the cornstarch goo once, but I don't think that we did it right after looking at your pics. I will have to try it again!
ScienceSparks says
Just be really careful and slow when adding the water. x
Isil says
My daughter would love this!
Pinkoddy says
This is great. My friend is organising a big halloween party so have shared this with her too.
ScienceSparks says
oh fab, i hope they enjoy it
Catherine says
Love the idea but having trouble tracking down glow in the dark paint as ELC don't seem to sell it anymore.do you know where else I can source some? Thanks
ScienceSparks says
Maybe e-bay?
JB says
Do you mean cornstarch? I've never heard of cornflour. Cornmeal maybe...
Emma Vanstone says
Yes, cornstarch, it's cornflour in the UK!