
Learning through play is the best way to get kids excited about learning! These fun STEM activities for preschoolers turn everyday play into opportunities to learn about science, technology, engineering, and math. Whether you’re looking for STEM activities, science activities, or activities for rainy days, you’ll find all the activities you’ll need here.
All activities on this site require adult supervision. When using this website, you agree to our terms of use. This post may contain affiliate links. I am an Amazon Associate, a Walmart partner, and a member of other affiliate programs and I earn a commission on qualifying purchases at no extra cost to you. Please read our disclosure policy for details.
Magnetic Sorting STEM Activity

Use some magnetic wands and a variety of small objects to help kids learn about magnetism. Be sure to include a few items that don’t look like they would be magnetic, such as pipe cleaners.
Magnet Paper Plate Mazes

This STEM activity is so much fun, and kids are going to love it. Draw a themed maze on a paper plate, then stick a matching character to a paperclip. Kids use a magnet wand to guide the character through the maze like magic.
Play Dough Pinball

Build a one-of-a-kind pinball course using play dough on a tilted tray, then test your design by rolling a ball through the obstacles. As kids adjust and rebuild their course, they’ll strengthen problem-solving skills, creativity, and early engineering concepts through hands-on trial and error.
Fizzing Moon Craters STEM Activity

Form a paste using water and baking soda, then make a moon surface from the paste. Drop vinegar into the craters to cause them to fizz up in an otherworldly fashion.
Fizzy Unicorn Potion Activity

Combine the magic of glitter and unicorns with science in this fun project. Fill plastic potion bottles with baking soda, mixed with glitter and food coloring. Kids drop in vinegar to make glittery, bubbly, beautiful fizzy potions.
Bee Pollination Experiment

This simple, fun experiment shows kids how bees pollinate flowers while buzzing around. The easy to set up project uses basic materials such as crushed cheese puff “pollen.”
Minecraft Creeper Slime

Make a simple slime recipe, then dye it green. Add a creeper face to a clear cup, and let the Minecraft slime fun begin.
Shark Slime

Some sea-blue DIY slime and a few plastic sharks are all it takes for a fun afternoon. Kids can learn about how sharks swim, and how some can’t breathe if they stop.
LEGO Slime

This project is the two titans of kids’ STEM activities, combined. Make homemade slime for a chemistry angle, and add in LEGO blocks for engineering too.
Skittles Experiment

This sun skittles experiment is the easiest STEM activity you’ll do all year! All you need is a plate, some skittles, and water and you can create this incredible science experiment!
