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!
PUMPKIN SCIENCE EXPERIMENTS FOR FALL STEM!
PUMPKIN SCIENCE
Fall themed science is awesome, and pumpkin theme science lessons are perfect for this time of year. I love repeating simple science experiments with fun twists. Doing simple science activities with different themes really allows young kids to practice what they are learning in a fun way!
Check out our new list of PUMPKIN BOOK & ACTIVITY IDEAS
Below you will find easy pumpkin science experiments and pumpkin projects for kindergarten, preschool and early elementary.
The great thing about these science activities is that they use simple materials, most of which you will already have on hand! Science learning really doesn’t have to be difficult or expensive!
Grab a few pumpkins, big and small, and get ready for some hands-on fun and learning this Fall!
PUMPKIN SCIENCE EXPERIMENTS
Click on all the links in orange or individual photos below to read all about set up and play!
Click here for your FREE printable Pumpkin STEM Activities
Pumpkin Slime
Kids love to play with slime and making slime is an awesome science experiment! Homemade slime is always fun especially when you make it inside a pumpkin.
YOU MAY ALSO LIKE: Orange Fluffy Slime
Pumpkin Volcano
Chemistry and pumpkins combine for a unique volcano science activity!
YOU MAY ALSO LIKE: Mini Pumpkin Volcano
Pumpkin Jack
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.
Pumpkin Oobleck
Classic 2 ingredient Oobleck science experiment inside a pumpkin!
Lifecycle of a Pumpkin
Explore whether pumpkins sink or float, what are the parts of a pumpkin and more with these simple, fun preschool pumpkin activities.
ALSO CHECK OUT: Pumpkin Life Cycle Worksheets
Crystal Pumpkins
Make your own crystal pumpkins with a fun twist on a classic borax crystal experiment.
Pumpkin Clock
Make your own clock using pumpkins to power it. Really? Yes, find out how you can make your own powered pumpkin clock.
Race Car Pumpkin STEM Activities
Add a pumpkin to your race track. Engineer a pumpkin tunnel or create a jump track for your cars.
FUN PUMPKIN CRAFTS
Click on each image below to enjoy pumpkin art and craft projects this season. Each pumpkin activity includes a free printable too!Â
- Try mess-free pumpkin painting in a bag.
- Make pumpkin bubble wrap prints.
- Create texture art with yarn wrapped pumpkins.
- Explore black glue art and pumpkins.
- Make pumpkin dot art.
- Create 3D paper pumpkins.
- Explore mindful art with our printable zentangle pumpkins.
WHICH PUMPKIN SCIENCE PROJECT WILL YOU TRY?
Click on the images below for more Fall theme science activities.



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!
Thank you so much for sharing these amazing experiments! Can’t wait to try them out!
Those look like fun experiments.
Thank you! There are so many fun ways to play and learn with pumpkins. Makes science extra cool this time of year.