At Science Sparks, we love autumn with its crunchy leaves, beautiful colours, and crisp, fresh air! I’ve compiled a huge collection of autumn science experiments that you might like, and I’ve also pulled together these autumn STEM challenges to help you make the most of the changing seasons.
If you’re looking for more general science experiments, try my collection of FREE printable experiments. It’s an ever growing collection of science experiment instructions for kids and adults!
Autumn STEM Challenges for Kids
Jumping leaves – static electricity experiment
Learn about static electricity with jumping leaves! Tissue paper leaves jump up to a balloon or PVC pipe that is charged with static electricity.
LEGO autumn tree model
Model the changing seasons with LEGO! We added LEGO hedgehogs and other fun additions to our seasonal models.
Create an autumn treasure stick
Place a strip of double-sided tape on a stick and search for autumn treasures to attach to it on a walk. Seeds, colourful leaves and small twigs work brilliantly.
Another idea is to cut out a crown or frame from cardboard and attach colourful leaves to decorate it. These are great for encouraging children to get outdoors as the weather changes.
Create an autumn collage
Use your imagination to create a vibrant autumn collage.
FREE PRINTABLE AUTUMN STEM CHALLENGES
Click on the button below to download your FREE printable autumn STEM challenges.
More autumn science for kids
Try some delicious apple experiments. Make apple cider, find out why apples rot and how to keep them fresh!
How about an autumn treasure hunt? Print the sheet and head out to see what you can find!
If your children love Halloween, I’ve got a deliciously spooky collection of Halloween science experiments, including pumpkin lava lamps, witchy potions and shadow puppets.
My Halloween STEM challenges are great fun, too!
If you have a little one at home, this pumpkin and tube activity from Happy Toddler Playtime looks brilliant.
I’ve also got some easy ideas for a spooky science filled Halloween party you’ll never forget.
Last Updated on October 10, 2025 by Emma Vanstone
