Creepy Frozen Brain Halloween Science Activity for Kids

Ew! Brains! I think my son is realizing this season that we are totally making much creepier science activities to enjoy for Halloween, and he kid of loves it! We have done so many types of Halloween science experiments over the years ranging from the not so spooky to the spookier. This melting Frankenstein’s frozen brain Halloween science activity takes the cake!

FRANKENSTEIN’S FROZEN BRAIN HALLOWEEN SCIENCE ACTIVITY

HALLOWEEN STEM ACTIVITIES!

It’s actually really simple to get kids started with science and STEM at an early age especially when you create playful science activities like our Frankenstein’s frozen brain melt idea. Kids love the novelty of the holidays and it’s easy to sneak in fun themes! We do these kinds of STEM activities for every holiday!

This year I picked up a few gelatin molds in hopes of some creepy science projects for Halloween! There are quite a few to choose from and we ended up with a heart, a brain, and a zombie’s brain. Of course, zombie’s brains are different! You can see below what we have already done with them all!

Frankenstein’s frozen brain is also part of our 31 Days of Halloween STEM printable calendar that you can also check out below and print off your own FREE copy today.

LET’S GET SET UP FOR MELTING BRAINS!

SUPPLIES: Amazon affiliate links have been included for your convenience!

Brain Mold {see product photo below from Amazon}
Water
Food Coloring
Bowl {optional to stabilize brain mold in freezer}
Basters, Eyedroppers, or Pipettes
Tray {to catch water}
A bowl of Warm Water {for melting brains}

TIP: You can add creepy things to your brain like plastic eyeballs and spiders! The trick to doing this is to freeze the liquid in layers and add your fun things as you go along. This way everything is somewhat evenly distributed. It’s also a simple way to show kids about sink/float and density of objects.

Ours is just a plain old frozen brain! However, I filled it with water and placed it in the freezer before adding some red food coloring. I added a few drops of food coloring to the water but did not mix it. I like the way the color settled unevenly.

SETTING UP YOUR FROZEN BRAIN HALLOWEEN SCIENCE ACTIVITY

Let your brain freeze completely solid and remove from the freezer.

TIP: You can run the outside of the mold underwater to help release the brain.

Slide out the brain, and place it on a tray or large serving platter!

Things can get a little wet once it is completely melted. You may want to have some towels handy!

You can set up a tray with our science lab goggles, a meat baster, a pipette, and a container of warm water. That’s it! Now you have a super simple frozen brain Halloween science activity perfect for kids to explore melting ice and even reversible change!

My son had a terrific time boring holes into the brain with the pipette and warm water. He still enjoys cool ice melting science activities after several years. It makes for a great first science project and is still fun years later.

Eventually, your frozen brain will melt away to a puddle of water for perfectly easy clean up. You could put the water back in the mold and freeze it again to demonstrate reversible change. Ice is a great example of that!

If you are looking for something a little different to do for Halloween science this year, playing around with these brain and heart molds is a ton of fun. Adding slime, ice, and gelatin are all easy to do but make for great simple science too.

AT WHAT TEMPERATURE DOES ICE MELT?

At what temperature does ice melt? Water not only freezes at 0 degrees Celsius and 32 degrees Fahrenheit, but it also melts at the same temperatures! This is why we call this temperature the FREEZING and MELTING point of water!

Freezing occurs at this temperature as heat is removed from the water to form ice crystals. In order to melt ice, you have to use heat energy. The heat energy first goes to break down the ice before it raises the temperature of the water.

Ice at the freezing point of water actually has less energy or heat in it than water at the same temperature!

SET UP A MELTING FROZEN BRAIN HALLOWEEN SCIENCE ACTIVITY FOR CREEPY SCIENCE!

WHAT ELSE CAN YOU DO WITH SPOOKY MOLDS?

Check out our gelatin science activity with a heart-shaped mold and our fluffy zombie slime with a zombie brain mold. Sure to please any kid who loves things that are a little creepy and gross! Click on pictures for more information.