We love pumpkins, we love Fall, and we LOVE SCIENCE! These pumpkin science experiments and activities are a fun take on classic science experiments with a bit of a twist. What’s the twist? You add a pumpkin! Classic baking soda and vinegar, homemade slime, oobleck, bubbles and more! It’s just awesome how you can enjoy science and STEM year round and make it exciting for young kids.
PUMPKIN SCIENCE EXPERIMENTS FOR FALL STEM!
Fall themed science is awesome and pumpkin themed science is perfect this time of year. I love repeating simple science experiments with fun twists. Repeating simple science activities with different themes really allows young kids to practice what they are learning in a fun way!
Explore physics, chemistry, and earth science. Check out our new list of PUMPKIN STEM BOOK IDEAS.
CHECK OUT GREAT PUMPKIN SCIENCE EXPERIMENTS AND ACTIVITIES
Click on all the links in orange or individual photos below to read all about set up and play!

Make Pumpkin Slime {as seen in the video above}
Our homemade slime is always fun especially when you make it inside a pumpkin.
Chemistry and pumpkins combine for a unique volcano science activity!
I love the story about pumpkin Jack. If you are going to carve a pumpkin this year then you are already a good part of the way there to setting up your own rotting pumpkin science experiment.
CLASSIC PUMPKIN SCIENCE EXPERIMENTS WITH A TWIST!
Classic Oobleck science experiment inside a pumpkin!
Classic parts of a pumpkin and how it grows experiment
Bubble Pumpkins/ Preschool Powol Packets
Classic bubble science inside a pumpkin!
Pumpkin Boats Sink Or Float/Preschool Toolbox
Classic sink or float experiment using pumpkins
Growing Pumpkins In Pumpkins/Life With Moore Babies
Classic Seed Science inside a pumpkin
Pumpkin Soup Sensory Play/The Golden Gleam
Exploring a pumpkin naturally through sensory play
Pumpkin Catapults {Made with a real pumpkin!}
Use a mini pumpkin to build a catapult! Cool fall STEM idea.
Pumpkin Hot Wheels Tunnel STEM Challenge
Add a pumpkin to your race track. Engineer a pumpkin tunnel or create a jump for your cars.
NEW! Real Pumpkin STEM Activities. Even More Awesome Ideas. Click below.
Grab a few pumpkins, big and small, and get ready for some hands-on fun and learning this Fall!
WHICH PUMPKIN SCIENCE IDEA WILL YOU TRY?
Click on the photos below for more awesome pumpkin ideas.
Carrie
What a great round-up of pumpkin science experiments. So fun! Thank you for sharing at Sharing Saturday and congratulations on being tied for most clicked this week!
Dani
Thank you so much for sharing these amazing experiments! Can’t wait to try them out!
Joseph Lippeatt
Those look like fun experiments.
littlebins
Thank you! There are so many fun ways to play and learn with pumpkins. Makes science extra cool this time of year.