19+ Easy Science Experiments for Kids

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Looking for some easy and fun science experiments to do with your kids? Whether you’re a parent, teacher, or just someone who loves a little DIY magic, these simple science activities are perfect for curious minds and little hands.

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From fizzy reactions to colorful creations, this list of 19+ science experiments is packed with exciting, hands-on fun. They’re super easy to set up, totally kid-approved, and a great way to sneak a little learning into playtime!

Be sure to also grab our Free Printable Science Experiment Worksheet (Scientific Method) to document all of the findings for each science project!

Rainbow Color Wheel Skittles Experiment for Kids

If you’re on the hunt for a fun and low-prep science activity for kids, this rainbow Skittles experiment is a must-try. It’s a bright and exciting way to explore color mixing, observe patterns, and introduce basic science concepts—all with just a handful of candy.

Completed color wheel Skittles experiment with vibrant rainbow pattern

DIY Fizzy Volcano Sensory Bin + Free Printable Science Experiment Worksheet

Need a fun and hands-on activity for toddlers or preschoolers? This fizzy volcano sensory bin is a simple, mess-friendly science experiment that combines sensory exploration with bubbly excitement—and even shows you how to make your own cloud dough along the way!

Rainbow Paper Towel Experiment by DIY Family Time

This rainbow paper towel science experiment is a quick and easy activity to set up and it’s (mostly) mess-free! Kids will love watching the colors mix while also getting a fun introduction to capillary action.

Rainbow Paper Towel Experiment

Fun Fireworks Skittle Experiment for Kids

Want a quick and colorful way to get your kids excited about science? The Skittles Fireworks Experiment is an eye-catching activity that takes just minutes to set up and creates a burst of color that’s perfect for summertime fun or festive holiday celebrations.

Working Indoor Water Cycle Science Experiment by Taming Little Monsters

Explaining the water cycle to kids is one thing, but showing them adds a new dimension. Use hot and cold water to create a real water cycle system right at home.

Working Indoor Water Cycle Science Experiment

Dancing Spiders Science Experiment by Finding Myself Young

For a fun and easy experiment, grab some club soda (or any clear soda—club soda is best since it’s not sticky) and a few plastic spiders. Kids will be fascinated as the spiders go from resting at the bottom to bouncing, swirling, and even floating thanks to the bubbles lifting them up.

Dancing Spiders Science Experiment

Leaf Chromatography Science Experiment by A Little Pinch of Perfect

This science experiment takes a little more patience than some, but it’s worth it. Kids can see firsthand how the different colors in leaves work, and what purposes they serve too.

Leaf Chromatography Science Experiment

Fizzy Bottle Caps Science Experiment by Life with Darcy & Brian

This experiment takes a classic project and adds some new dimensions to keep things exciting. Grab food coloring, baking soda, vinegar, and some bottle caps for a fizzy good time.

Fizzy Bottle Caps Science Experiment

Rain Cloud in Jar Science Experiment by Living Life & Learning

Kids will love this fun experiment and not just because it involves playing with shaving cream! It’s a hands-on way to model how rain clouds work and a great way to spark curiosity about the water cycle.

Rain Cloud in Jar Science Experiment

Color Changing Flowers by The Best Ideas for Kids

Capillary action is how plants move water all the way from their roots to their leaves. This experiment helps kids see that process in action while creating beautifully colored flowers.

Color Changing Flowers

Fizzy Painting Art & Science Activity by Fox Farm Home

Another unique take on the classic baking soda and vinegar experiment comes in the form of this fizzy painting. Make baking soda paints and then add vinegar once the kids are done painting.

Fizzy Painting Art and Science Activity

How to Create a Foaming Rainbow by Two Kids and a Coupon

Kids will have a blast creating this foaming rainbow! It’s super simple to set up and exciting to watch. Just be ready for a bit of mess along the way.

Foaming Rainbow

Magic Blooming Paper Flower Craft by Messy Little Monster

Grab the printable templates for this simple, fun craft/experiment. Watching these flowers bloom like magic when placed in water is a great experiment that kids will really enjoy.

Magic Blooming Paper Flower Craft

Magic Paint Potions by Barley & Birch

Kids can have fun making these magic paint potion crafts. Using a variety of different substances lets them see how different elements combine.

Magic Paint Potions


Magnet Experiment by Little Bins for Little Hands

Magnets are loads of fun for supervised play. The printable rocketship template lets kids make these rockets actually fly.

Magnet Experiment

Magic Milk Science Experiment by Natural Beach Living

Magic milk is a fun and mesmerizing activity for kids to enjoy in the afternoon. The swirling colors look incredible, and it’s so entertaining to watch them dance and mix like magic.

Magic Milk Science Experiment

Chromatography Butterfly Craft by Buggy and Buddy

Chromatography is a fun science technique that separates colors. With this experiment, kids can learn how it works while making colorful butterfly creations.

Chromatography Butterfly Craft

Water Balloon Science Experiment by 123 Homeschool 4 Me

Kids can explore the concept of density by using water balloons filled with different materials. By placing them in a container of water, they’ll have fun seeing which ones float and which ones sink.

Water Balloon Science Experiment

STEM Catapult by Rock Your Homeschool

This STEM catapult experiment is a great hands-on activity that teaches kids about design, engineering, and physics. Plus, they’ll have tons of fun launching pom poms across the room.

STEM Catapult

Cotton Candy Science Experiment by Pre-K Printable Fun

This science experiment is an excellent way to teach kids about the scientific method and forming a hypothesis. Plus, they get a sweet, fizzy drink once it’s done.

Cotton Candy Science Experiment

How to Make Rock Candy by Kids Activity Zone

Speaking of science experiments that result in a sweet treat, homemade rock candy is the perfect option. Kids will not only discover how crystals form, but they’ll also practice patience as they wait for their candy to grow.

Rock Candy

Earth Day Science Experiment by Made in a Pinch

Here’s a perfect science experiment for Earth Day. Kids use fizzy paint with baking soda and vinegar to make a picture of the planet.

Earth Day Science Experiment

Paper Mache Erupting Volcano by Red Ted Art

The classic volcano experiment has been a staple at science fairs for years, and for good reason. Building a paper mache volcano adds a hands-on element that helps kids truly grasp the science behind the eruption.

Papier Mache Erupting Volcano

Science doesn’t have to be complicated—or messy (well, not too messy!). With a few simple supplies and a little curiosity, you can turn an ordinary afternoon into an awesome adventure.

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