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in Fall STEM Activities· Seasonal STEAM· STEM Activities

How to Make a Jello Brain Without a Mold

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Gross out your kids, friends, and neighbors with this deliciously frightening jello brain recipe! No mold needed to make this jello brain STEM activity! 

When we made our Halloween jello worms, we had a lot of leftover jello that was stuck between the straws.

We didn’t want to waste it, so I asked Monkey what we could make from it. She thought it looked like a brain, so we made our very own jello brain recipe without a mold.

This was one of our easiest projects yet, and much easier than the worms themselves. This is how to make a jello brain without a mold:

Gross out your kids, friends, and neighbors with this deliciously frightening jello brain recipe! No mold needed to make this jello brain STEM activity!

 

Related: Halloween Science and STEM Activities for Kids!

How to Make a Jello Brain Without a MoldGross out your kids, friends, and neighbors with this deliciously frightening jello brain recipe! No mold needed to make this jello brain STEM activity!

What made this project a STEM activity is that we were already discussing the science of collagen and how gelatin changes viscosity when cooled or heated. Monkey came up with the idea to transform the leftovers into a brain, further completing STEM activity requirements. She probably had brains on the mind after we completed our last brain STEM activity. 

Ingredients for the no-mold jello brain recipe:

  • 1 box of flavored gelatin (we used grape)
  • Red food coloring (10 drops)
  • Plastic straws (we used these)
  • Large jar (we used a mason jar)
  • Water (3 cups)
  • Milk or cream (1/2 a cup) (you could also use non-dairy creamer)
  • Unflavored gelatin powder (1/2 of a cup)

Gross out your kids, friends, and neighbors with this deliciously frightening jello brain recipe! No mold needed to make this jello brain STEM activity!

We recommend making these and the jello worms at the same time. Kill two birds with one stone!

Mix all of the boxed galatin, water, milk, and red food coloring in a pot. Bring the mixture to a boil, then add the unflavored gelatin while stirring the mixture when it is still hot. Let the mixture cool for 20 minutes.

While the mixture is cooling, add your straws to a jar. Fit in as many straws as the jar will hold. Place the jar in the fridge and cool for 24 hours.

The next day, release the straws gently from the jar. It will come out as one solid lump of straws/jello. Gently release the straws from one another. The straight pieces between the straws will become your brain.

Arrange the pieces of jello into a brain-like shape. Monkey said to make sure not to forget to add the brain stem.

Gross out your kids, friends, and neighbors with this deliciously frightening jello brain recipe! No mold needed to make this jello brain STEM activity!

You can use this brain on a plate as a decoration, or just use it as an illustration for how a brain works. We like this video of what a brain looks like.

More Halloween STEM Activities

Jiggly Gross Halloween Jello Worms

Build a Monster Engineering Challenge

Spidersilk Slime Experiment

 halloween stem challenges 

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Filed Under: Fall STEM Activities, Seasonal STEAM, STEM Activities Tagged With: halloween

About Brenda Priddy

Brenda grew up thinking she hated science.

But when her 4-year- old daughter was more interested in reading science facts than fairy tales, Brenda realized she had to learn more about science to keep up with her daughter.

Through simple at-home science experiments, Brenda developed a passion for science and now acts as an advocate for STEM education for kids at her website STEAMsational.com.

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What is STEAM?

STEAM activities for kids promote the idea that science, technology, engineering, art, and math can all work together to help kids become critical thinkers, problem solvers, and innovators!

Join us on our journey to discover just how much fun science experiments can be.

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STEAMsational offers STEM and science lesson plans and teaching resources to provide a firm STEM foundation for children in the classroom or home.

All you need to do is find your supplies, gather your scientists, and let the innovation unfold.

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