10 Fun, Fall-Themed STEM Activities

I've noticed in my years of classroom teaching, as a homeschool mom, and as a teacher in a homeschool co-op that almost all kids love STEM activities. Announce that you're going to do an experiment/exploration/activity in class for the day and most of the kids will be excited. It's even more fun when you can find seasonally or holiday-themed activities.

Fall STEM activities for kids
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I've been on the lookout for some fall-themed STEM (science, technology, engineering, and math) activities, and in this post I'm sharing some of my favorites. Grab the kids, collect some supplies, and try out some of these activities in  your homeschool this week.


Glowing Pumpkins

This activity from Steve Spangler science uses glow powder to decorate your fall pumpkins while teaching kids about fluorescence and phosphorescence. If you like to decorate pumpkins but hate the messy carving, you'll like this idea and you'll learn about science concepts while you're at it.

Why Do Leaves Change Color in Autumn?

This activity from How Wee Learn answers a basic questions that kids- and parents- often wonder. How, exactly, do leaves change color in the fall? The answer sometimes seems complicated to explain to wondering kids. But this simple experiment that uses materials you probably have around the house will help kids have a basic understanding.

The Pumpkin Geoboard

I love geoboards! I was first introduced to them in a math for teachers class in college, and I loved the concept. I used them in my classroom as a traditional school teacher, and we've had a set in our homeschool since the kids were really young. In the spirit of fall, this activity from Fun-A-Day uses a pumpkin to create a homemade geoboard. Using the rounded pumpkin instead of a typically flat geoboard will give kids all kinds of interesting ideas to experiment with.

Apple Oobleck

Little Bins for Little Hands has an oobleck activity that includes applesauce- a favorite fall treat. If you've never made oobleck, it's a non-newtonian fluid- a substance that can be a liquid or a solid. The name comes from a Dr. Suess book. We've made oobleck before, but I love the applesauce twist that makes this a fun fall activity.

Weight and Measurement with Pumpkins

Pumpkins offer lots of opportunities for weighing, measuring, and counting. This post from Science Sparks has some good ideas for using pumpkins- usually easy to get in the fall- for exploration.

What Causes the Seasons to Change?

If you're looking for experiments for older kids, this activity from Education.com is a great one for guiding kids to explore the changing seasons. It uses basic supplies you'll probably have around the house- always a plus when I'm planning a science activity. Kids will explore the tilt of the earth in different seasons using a globe, flashlight, graph paper, and protractor.

Apple Taste Test

Who knew that something fun and yummy- like taste testing a variety of apples- could be a great math and science exploration activity? This project from Feels Like Home lets kids record information about a variety of apples. They'll practice critical thinking and graphing skills while they eat all kinds of yummy apples.

Dissolving Candy Pumpkins

Although candy pumpkins are fun to eat, they're also fun to experiment with, as proved by this dissolving experiment from Lemon Lime Adventures. This activity will have kids making predictions, experimenting with different variables, and recording results. You can even change up this experiment to try different candies and liquids to see what is going to happen.

Halloween Science: Oozing Monster Heads

What kid doesn't enjoy making a huge, messy eruption? Talk about chemical reactions as you create these oozing monster heads from Kitchen Pantry Scientist. There is a video that will show you exactly how to set up the activity, and the kids can get inventive in decorating their monster heads for the project.

Predicting Leaf Color With Chromatography

With this activity from Life With Moore Babies kids can predict what color leaves will turn in the fall using chromatography. This experiment might look complicated because it has many steps, but it's explained very well, and there are plenty of pictures to help you.

Fall STEM activities for kids

Enjoy the season with these STEM activities. Do you have other favorite fall STEM activities that you've tried?


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