If you need a last-minute creepy addition to your Halloween costume, we've got just the thing: fake blood! It looks great, and you probably have everything you need for our fake blood recipe already in the kitchen, so you don't even need to go shopping.
This activity is also found in my book Gross Science!
Fake Blood Recipe
We made two types of fake blood. The first shows and demonstrates how blood actually works as it clots.
The second is just pretty cool and more effective looking!
Both contain food colouring and stain clothes, so make sure you aren't wearing anything you're not happy to stain red!
Fake Blood Recipe 1
Blood Type (pun intended) 1
Gelatin powder
Water
Saucepan
Red food colouring
Glass
Greaseproof paper
How to make fake blood with gelatin
1. Heat about 120ml of water until it is boiling.
2. Add one teaspoon of gelatin powder
3. Keep stirring until it dissolves - it does tend to stick to the pan.
4. Take off the heat and leave to cool for 15 mins
5. Add a few drops of red food dye until you get the colouring you would like.
6. The fake blood will thicken slowly, showing how blood coagulates and sticks together.
7. You can use it once it reaches the desired consistency with vampire fangs and pretend cuts.
8. If you remove some of the sticky blood and smear it on greaseproof paper, it will set hard like a scab does!
Fake Blood Recipe 2
Blood Type 2
This is a sticker, tastier and gooier blood, but not as clever. It just looks good
Golden syrup
Flour
Red blue dye
Blue food dye
How to make fake blood with golden syrup or corn syrup
1. Pour in 3 squirts of golden syrup or corn syrup
2. Add 1 tsp of flour and stir
3. Add at least five drops of red food colouring.
4. Add a tiny drop of blue to get that rich red colour.
5. You now have your sticky blood!
So go and have fun and freak your friends out!
If you liked this, you'll love my other GROSS science experiments!
If you fancy some more science in the kitchen, try one of the 60 ideas in my new book, Snackable Science.
Last Updated on October 2, 2024 by Emma Vanstone
Liz Burton says
Haha that's very cool. *wonders what she can do with it*
Multiple Mummy says
Acting make up and role play? Or maybe just to be silly! Good thing to do after they have hurt themselves to distract and show how they heel! 🙂
Actually Mummy... says
I have to say I just love your website! We are learning so much and the kids think it is so cool 🙂 We will blog about one of your experiments one of these days!
Multiple Mummy says
That is so good to hear and we would love you to! Still trying to get people to find us so all the support is gratefully received! 🙂
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Beth says
Very cool! Thanks for the recipes! I wanted to invtie you to come link up at my TGIF linky party - http://livinglifeintentionally.blogspot.com/search/label/Linkey%20Parties
~Beth
maggy, red ted art says
Oooh gorey indeed!!! And most definitely a great Halloween Science Project!
Thank you for sharing on Kids Get Crafty!!
Maggy
Mom to 2 Posh Lil Divas says
very cool experiment! Thanks for sharing on the Sunday Showcase. Hope to see you this week -
http://momto2poshlildivas.blogspot.com/search/label/Sunday%20Showcase
Bern
ScienceSparks says
Thank you. I'm sure you will see us most weeks! 🙂
Ticia says
My brother used to make this by the bucketful for his "movies," thanks for linking up to Science Sunday (and yes I'm late getting around from last week).
ScienceSparks says
oooh sounds like lots of fun! xx