Brady, my preschooler, absolutely loves it when I tell him we’re going to do science experiments. His face lights up with excitement—there’s something about the word “science” that just makes him beam. And honestly, they’re so much fun!
I’m always on the lookout for simple experiments that don’t take much time or require a ton of patience. Let’s be real—patience isn’t exactly a four-year-old’s strong suit!
I aim for experiments that need only a few ingredients, are completely safe, and are hands-on. If you’re looking for experiments to spark curiosity in your little one, here are my top picks for 3-4-year-olds!
10 Simple Science Experiments for 3-4 Year Olds
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1. Oil and water don’t mix, but what happens when you add this special ingredient? From Play Trains.
2. Test your kids’ hypothesis on what would happen if they stepped on raw eggs. They will love this one! From Housing A Forest.
3. You can blow up a balloon with a combination of soda and candy. So cool! From Learn Play Imagine.
4. This exploding baggie experiment is a twist on the classic baking soda and vinegar reaction and is super simple. From Coffee Cups and Crayons.
5. Exploding milk is one of the most fun and simple kid science experiments, and you only need three kitchen ingredients. From Laughing Kids Learn.
My friends just wrote a brilliant science books for kids that we just adore! You’ve gotta check out The 101 Coolest Simple Science Experiments.
6. How do the ice trucks melt snow after a storm? This is a great demonstration. From The Artul Parent.
7. Explain to your kids how sound waves work with this classic experiment. From We Made That.
8. Explaining the concept of air pressure to preschoolers can be tricky but this easy experiment shows it perfectly! From Kids Activities Blog.
9. Explore how plants “drink” with this experiment showing water moving through a leaf. From Buggy and Buddy.
10. Did you know you can make ice grow? Here’s how! From Teach Preschool.
Amazing Science Kits For Kids
Kitchen Science Kit | Magnet Science Kit | Solar Science Kit | Grow A Maze Kit
Want More? Here’s Art Projects for 3-4 Year Olds
Liz is a just a mom trying to keep it real about how little she sleeps, how often she gets puked on and how much she loves them. You can find her here every day writing about real-mom moments.
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