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Amazing, Heat-Sensitive Color Changing Slime Recipe

This amazing color changing slime is going to blow your mind! The easy-to-make heat sensitive slime will actually change color as your kids touch it because of the thermochromatic pigment you can easily buy on Amazon! This fun color changing slime recipe is a great science activity for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and up toexplore by playing. Let me show you how to make color changing slime with our thermochromic slime recipe that only takes 5 minutes! This is the best homemade slime recipe!

This amazing color changing slime is going to blow your mind! The easy-to-make heat sensitive slime will actually change color as your kids touch it because of the thermochromatic pigment you can easily buy on Amazon! This fun color changing slime recipe is a great science activity for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and up toexplore by playing. Let me show you how to make color changing slime with our thermochromic slime recipe that only takes 5 minutes! This is the best homemade slime recipe!

Color Changing Slime

I love kids activities that really WOW! You know the kind, where kids are impressed while they are completing the activity for kids, but also talk about it for days, weeks, and months afterwards. Those are my favorite things to try. I know we are not only having fun, but creating memories of epic childhood days playing and learning together with a science project for kids that will WOW! This color changing slime is definitely one of those cool projects for kids to try. It takes the fun of amazing, fun-to-play with slime up a notch… or two! They will have fun playing with this heat sensitive slime, watching the slime sheet, flow, ooze, and instantly come back together nice and neat. But thing amazing activity will actually change colors right before your kids very eyes!

And if you want to – you can even teach them about science in the process! Ready? All you need are a couple easy-to-get supplies and I will show you how to make heat sensitive slime. This science activity is loads of fun for preschoolers, kindergartners, grade 1, grade 2, grade 3, grade 4, grade 5, and grade 6 students.

EPIC, Heat Sensitive Slime project for kids this summer

Heat Sensitive Slime

This has to be one of the coolest play recipes ever! All you need is 5 ingredients and 5 minutes and you get to play with this color changing, heat sensitive SLIME! Kids of all ages – from toddler, preschool, pre k, kindergarten, first grade, 2nd grade, 3rd grade and more – will have fun exploring scientific principles of trial and error as they make cool patterns and changes in the color of the thermochromic slime.

If you want to try our favorite “regular” slime – don’t miss our favorite 2 ingredient Slime or our dish soap slime.

Before you start, you need to decide what your color scheme will be for the slime. It will start out one color based on the thermochromic pigment you use (when the dough is cold), and change to an alternating color based on the food coloring you used (hot color).  You wan to think color wheels when picking your colors as you will see variations of the colors as the hot and cold colors mix….Think color wheel neighbors to make the transition smooth.  I used:

  • Blue pigment with yellow food coloring (Slime is teal and turns yellow when hot)
  • Red pigment with yellow food coloring (Slime is orangey red and turns yellow when hot)
  • Blue pigment with red food coloring (slime is purple and turns pink when hot)

for this easy slime recipe you just need elmers white school glue, sta flo liquid starch, food coloring, and color changing pigment

Color changing slime recipe

To make this THERMOCHROMIC Slime all you need are a few simple materials you can order on Amazon or pick up at your local Walmart.

mix the glue, sta flo, and food coloring in this simple slime recipe

How to Make Color Changing Slime

Okay, to make this color change slime, start by pouring 1/4 cup glue into a large bowl.  Add 1 tablespoon water and stir until combined.  Add 5 drop of food coloring (see above for ideas) and mix well.

mix in the thermochromic pigment to your slime recipe

Thermochromic Slime

Then add 3 teaspoons of thermochromic pigment and mix until uniformly distributed.

continue mixing until your slime recipes for kids is stick

Colour Changing Slime

Now add in 1/8 cup liquid starch (StaFlo) and mix until thick and slimy.  Then knead the slime with your hands and return to the starch mixture for another mixing.  This step is important because it makes sure there’s no unmixed glue hiding in the center of your slime ball.

If slime is still sticky, add additional starch a little at a time. Make sure to knead until it is no longer sticky.  Most batches will use the entire 1/4 cup sta flo that is indicated in our slime recipe above.

This amazing color changing slime is going to blow your mind! The easy-to-make heat sensitive slime will actually change color as your kids touch it because of the thermochromatic pigment you can easily buy on Amazon! This fun color changing slime recipe is a great science activity for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and up toexplore by playing. Let me show you how to make color changing slime with our thermochromic slime recipe that only takes 5 minutes! This is the best homemade slime recipe!

Color Change Slime

Store heat sensitive color changing slime in a glass or plastic container with a lid for up to one week.  If you haven’t played with it for a couple of days you might need to add a little additional starch to it, one teaspoon at a time.

Want to see what this AMAZING color changing slime recipe looks like in action as your kids play? Keep scrolling….

color changing slime for kids

Slime Recipes

Just like “traditional” slime, this slime is fun to knead, squish, watch pour into a pile and pick back up easily to play some more.

pink and purple color changing slime

Homemade Slime

But unlike regular slime, this fun slime recipe will change colors as your child plays. The pigment reacts to heat. When the dough is cold it will be the color of the thermochromic pigment you used. But when your child touches it it will change to the color of the food coloring. Amazing right!

This amazing color changing slime is going to blow your mind! The easy-to-make heat sensitive slime will actually change color as your kids touch it because of the thermochromatic pigment you can easily buy on Amazon! This fun color changing slime recipe is a great science activity for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and up toexplore by playing. Let me show you how to make color changing slime with our thermochromic slime recipe that only takes 5 minutes! This is the best homemade slime recipe!

How to make butter slime

We taught you how to make color changing slime, but are you curious as to why it works?

This slime gets its color changing super powers from thermochromics pigment. As the temperature changes, Thermochromic materials change colors. You’ve probably seen this reaction before in mood rings, lipstick, and rubber duckies that tell you when the bath is too hot for babies.

There are two main types of thermochromics materials

  1. Liquid crystals – temperature changes cause the crystals to move, changing the spacing between them. This causes light to refract at different wavelengths, creating different visible colors.
  2. Leuco dyes – instead of changing the distance between crystals, temperature changes cause the dyes to change molecular structures. One form reflects colored light, the other colorless.

heat sensitive slime science project

Slime recipe without borax

For older students, use this activity to get them thinking. Ask them questions like:

  • Why do you think heat changes the slime?
  • What happened when you touched the slime?
  • Where have you seen other items that are heat sensitive?

thermochromic slime

Easy slime

Go a step further as you as children to come up with a couple experiments using the slime. Have them use the scientific method: ask a question, gather information and observe (research), make a hypothesis (guess the answer), experiment & test your hypothesis, analyze your test results, and present a conclusion.

  • What will happen if we put an ice pack on the slime?
  • What happens if we use a hair dryer to heat up the slime?
  • If we let the slime dry out will it still change colors with temperature fluctuations?

color changing slime activity for kids

Making slime with glue

Whether you are a parent, teacher, grandparent, homeschooler, or organizing a day camp / science camp – you will love this outrageously fun & easy to try activity for kids.  The color and exploration possibilities are truly endless!

This amazing color changing slime is going to blow your mind! The easy-to-make heat sensitive slime will actually change color as your kids touch it because of the thermochromatic pigment you can easily buy on Amazon! This fun color changing slime recipe is a great science activity for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, and up toexplore by playing. Let me show you how to make color changing slime with our thermochromic slime recipe that only takes 5 minutes! This is the best homemade slime recipe!
You’ve got to try this epic science project for kids! It will be something they remember even into adulthood!

spider slime recipe If your kids love slime - they are going to flip over making Rainbow Slime! Use this rainbow activity for kids as part of your next rainbow theme for spring or summer. This colorful slime recipe is also a really fun St Patricks day activity, a weather activity, or a color theme too!   Toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade and 4th grade students will love this rainbow art ideas. Just follow our simple rainbow slime recipe and we will show you how to make rainbow slime. 2 ingredient wow slime recipe This amazing new gummy bear slime uses actual gummy bears to make this fun-to-play-with edible slime! This edible slime recipe with gummy bears is perfect for toddler, preschool, pre-k, kindergarten, and first grade students. Use it as a kitchen science experiment, play recipe for tactile exploration and sensory activity, use it for a fun rainy day project, or simply use it because it sounds like fun to play with gummy bears today!

Slime Recipe

Looking for more fun-to-make easy slime recipes? You’ve got to try these slime recipes for kids:

Get ready for a REALLY fun st patricks day activity with this gold slime! It is super quick and EASY to make this gold glitter slime that looks so cool as it oozes, stretches, and drips. Use this outrageously FUN st patrick's day activities for toddlers, preschoolers, kindergartners, grade 1, and grade 2 students! But watch out or sneaky Leprechauns may try to steal your gold! Christmas-Fluffy-Slime-Recipe Glittery Purple Valentine Slime amazing-melting-snowman-slime-recipe

Seasonal Slime Recipes

Have you ever heard of a lemon volcano? Kids are going to love this fun, creative,volcano experiment that screams summer! This simple lemon volcano experiment is perfect for curious kids from toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too. All you need are a few simple materials to make some amazing erupting lemon volcanos! Protecting your skin from the sun's UV rays may be a hard, abstract concept for kids to understand... at least until they get a sunburn. This simple sunscreen experiment allows kids to learn about the importance of using sunscreen this summer. This summer science is perfect for all ages from kindergartner, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th graders. All you need are a few simple materials to try this sunscreen construction paper experiment. The goal of an amazing science experiment for kids is to grab kids attention and make them wonder why did that happen, how could that work, and I want to try that! This leak proof bag is such a simple science experiment for kids that explores polymers. What's best is this amazing science experiment with everyday materials! Try this water experiment with kids of all ages from toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, and 4th graders too. Looking for really fun beach activities for kids? This sand volcano is not only a really cool thing to do on your summer vacation, but a fun summer science experiment too. This volcano experiment is perfect for toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too.  This summer activities for kids is super quick and easy with NO clean-up.

Science Activities for Kids

Looking for more outdoor activities for kids and things to do in the summer? Your toddler, preschool, pre k, kindergarten, and elementary age kids will love these fun ideas to keep them busy all summer long:

If you are looking for a fun unique activity using eggs, you will love this silly egg head craft. This egg shell diy chia pet is cute, simple and silly spring activities for kids. This egg shell craft is fun for toddler, prsechool, pre-k, kindergarten, first grade, and 2nd graders too! Looking for a fun summer activity for kids? You are going to love blowing colorful snake bubble. This sock bubbles activity is super simple and such an easy summer activity idea for toddlder, preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too. It takes blowing bakcyard bubles to a new level making long, colorful snakes with a simple technique using a sock and a plastic bottle. You've got to try this bubble snake experiment. Use these super cute beach worksheets to sneak in some fun summer learning in between all your summer activities to keep up skills and avoid the summer leaning loss. These free beach printables include letter find, beach i spy, beach math, counting, addition, skip counting puzzles, and so much more. This HUGE pack of over 70 pages of beach worksheets for preschool, pre k, kindergarteners, and first graders is so handy! Simply print pdf file with summer worksheets for preschoolers and you are ready to play and learn with a beach activity for kids! Looking for a fun, engaging pasta craft? This pretty stained glass pasta project has so many different possibilities to let your children explore their creativity, create something unique and beautiful, and strengthen coordination with those little hands. In this pasta art you will use dyed pasta to creat a beautiful stained glass craft. This stained glass art for kids is perfect for toddler, preschool, pre-k, kindergarten, first grade, and 2nd graders.

Summer Activities for Kids

Nothing says summer like a big juicy watermelon! We whipped up a bath of this amazing, scented watermelon playdough for our upcoming watermelon theme! This homemade playdoh recipe is super easy-to-make, soft, and such a fun watermelon activity! Use this kool aid play dough recipe as a fun summer activities for preschoolers, toddlers, kindergartners, grade 1, grade 2, and grade 3 students. Even your reluctant learner will get excited to try this easy science experiment where you will product a HUGE erruption! In this classic Mentos and Soda Experiment you will mix a couple simple materials to produce a chemical reaction. This mentos in Coke project is a MUST TRY for kids of all ages from preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, and 4th graders too. Even adults love trying the coke and mentos experiment. Don't worry, we'll give you the diet coke and mentos experiment results explained so you get all the learning out of this fun summer activity for kids! Tin Foil Art Looking for the best sidewalk chalk paint recipe? We think this sidewalk chalk is perfet because it is super quick, only uses 2-ingredients, and makes such bold, vibrant colors for kids to color with. Use this diy sidewalk chalk paint with toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders to let their imaginations SOAR! Let them use the homeamade chalk to create dragons, butterlies, flowers, trees, aliens, and more. Creating and using homemade sidewalk chalk paingit such a fun, simple, and classic summer activity for kids of all ages!

Fun Summer Play

About the author

Beth Gorden

Beth Gorden is the creative multi-tasking creator of 123 Homeschool 4 Me. As a busy homeschooling mother of six, she strives to create hands-on learning activities and worksheets that kids will love to make learning FUN! She has created over 1 million pages of printables to help teach kids ABCs, science, English grammar, history, math, and so much more! Beth is also the creator of 2 additional sites with even more educational activities and FREE printables - www.kindergartenworksheetsandgames.com and www.preschoolplayandlearn.com

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