“How the Grinch Stole Christmas” is a classic Christmas story by Dr. Seuss. It has inspired teachers, students, and creators since its first publication. During the holiday season, the Grinch is a popular character that brings smiles to young students’ faces. You can keep them smiling throughout their science and math classes with these Grinch-inspired STEM activities. We’ve collected fifteen of the best Grinch-related fun activities to help make science and math classes more fun!
1. Stack a Whoville Christmas Tree

Dr. Seuss is famous for his illustrations that feature objects that look like they’re just about to fall over. And The Grinch is no exception! Your little Whos can recreate that quirky Christmas tree style with this meaningful learning activity that features tree-shaped stacks of green plastic cups. Don’t let it fall down!
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2. Balls and Craft Sticks STEM Project

With some paint and glitter, you can turn a clever STEM challenge into a Christmas art project. If the Grinch stole your Christmas tree, use this project to see how big you can big a new tree with foam balls and craft sticks! Plus, the colors and shiny accents make the end result a great addition to your holiday décor!
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3. Recycling Christmas Lights
It doesn’t matter if the Grinch broke all of the Christmas lights because, with this science activity, you can bring those lights back to life! With just one little light from the string and a standard battery, you can teach your kids about electricity and circuits. Plus, this fun STEM project will teach kids about the importance of upcycling, reusing, and recycling.
Learn More: Education.com
4. Grow a Crystal Snowy Christmas Tree

Did the Grinch steal your Christmas tree? Even if he did, don’t worry, because you can grow a new one! All you need are some ingredients that you probably already have in the kitchen (like salt and baking soda) and a bit of time to watch the magic happen. The end result is a crystal snowy Christmas tree that even the Grinch will appreciate!
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5. Build a Marshmallow Igloo

This is an open-ended STEM project that allows kids to be creative and think like engineers. Using only marshmallows and toothpicks, students are challenged to build a cozy igloo. Since it’s an open-ended STEM activity, you can expect to see lots of different versions of these sweet igloos.
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6. Grinch’s Sleigh Building Challenge

The Grinch’s sleigh can hold all of the Christmas decorations, food, and accouterment from all of Whoville. Can your young learners design and build a sleigh as strong and effective as LEGOs and other household items? Make the STEM challenge complete and race the sleds against each other to see who engineered the best vehicle!
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7. Make a Snow Storm in a Jar

This winter-themed craft will help get the Grinch’s sleigh in time back to Whoville for the celebration! You can teach your little learners about how pressure systems work, and bring the magic of snow to the holiday with this fun afternoon activity.
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8. Dissolving Candy Canes

Are you like the Grinch? Do you hate Christmas candy canes? If so, then this activity is for you! You can use classic colored or multi-colored candy canes to complete this fun science project. The end result of this fun, low-cost, easy-prep STEM challenge is a colorful mess, and the Grinch would definitely approve!
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9. Printable Fractions with Snowflakes Worksheet

This worksheet is ready to go, and it is geared toward kids who have just started to learn about fractions. The snowflakes are divided into equal parts, and coloring instructions make the concept crystal clear!
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10. Christmas Color By Number Math Worksheet

This coloring activity focuses on basic math operations, and features many fun shapes and fun characters, including the Grinch! When students solve each problem correctly and color by the numbers, the pictures emerge and everyone is filled with Christmas cheer.
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11. STEAM Christmas Tree Chemistry Experiment

If your little Grinches are into chemistry experiments that fizz and bubble, then this is a perfect holiday project for them. These Christmas trees are made from a foamy base and decorated however your creative kids can imagine. Plus, you probably have most of the necessary ingredients in your kitchen already.
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12. Classic Experiment with Magic Milk

You can make magic marbled milk with these instructions and a bit of Christmas spirit! It is the perfect beverage to leave out for Santa Clause- as long as the Grinch doesn’t get to it first! Kids will learn about density as they enjoy making magic milk.
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13. Symmetry Drawing Lesson with the Grinch

Symmetry is an important part of art important nature. Kids can learn all about symmetry with this drawing lesson that features the Grinch himself! Kids can take inspiration from the original picture book, or they can look at sample activities for more ideas.
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14. Grinch’s Heart Science Experiment with Marshmallow Peeps

This experiment uses heart-shaped marshmallow Peeps and different liquids to explore physics concepts like saturation and viscosity. The heart marshmallows grow, just as the Grinch’s heart grew in the warm conclusion to the story! This heart science experiment really does have a lot of heart, and it’s one of many marshmallow experiments that you can try out this holiday season.
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15. Grinch Slime Experimental Activity

Perhaps your little Grinch is excited to try a messy science experiment. If so, this green Grinch slime is an excellent option. It combines chemistry basics and lots of fun to make the perfect holiday activity. The stretchy slime also reminds us to let our hearts stretch and grow throughout days of holiday projects and celebrations!
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