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22 Science Activities for Preschoolers

22 Science Activities for Preschoolers

Hands-on preschool science activities and simple science experiments can encourage curiosity and make learning science fun for young kids. From erupting volcanoes to making parachutes, these interactive experiences can spark a love of science from young!

What easy preschool science experiments can be done at home?

These easy preschool science experiments use common household items. In the comfort of home, discover how each science experiment sparks their interest in science while providing all the fun you can imagine!

Galaxy in a Bottle
Create a mini Milky Way galaxy in a jar that sparkles! It's mesmerizing and so much fun to make and gaze at!
Frozen Flower Sensory Play
Watch ice melt and flowers bloom in this hands-on science activity for kids!
Sprouting Seeds Into Plants!
Explore the magic of plant growth and watch seeds from your kitchen come to life! Sprout seeds on a paper towel, then plant them to see them thrive!
Baking Soda Lava Lamp
Create your own mesmerizing lava lamp with fizzy bubbles! Watch as colors swirl and bubbles rise in this exciting experiment.
Mixing Colors of Light
Have you ever wondered what happens when you mix colors of light? In this project, you will use flashlights and colored plastic sheets to find out!
Make a Parachute
Learn how to make a parachute and experiment with gravity!
Temperature and Water Movement
Let's explore how hot and cold water affects the movement of water!
Magic Milk Experiment
See colors magically move in milk with soap! This fun experiment demonstrates surface tension in a vivid way!
How to Make Oobleck: Is it a Liquid or Solid?
This simple Oobleck recipe of cornstarch and water is a fun introduction to the complex science of non-Newtonian fluids!
Baking Soda Volcano
Create a fizzing, bubbling reaction with baking soda and vinegar! Learn about acid-base reactions and have fun while doing it!
Solar System Sensory Bin
Explore the solar system with this fun activity! Bounce around with the planets, and discover the moon, stars, and Sun!
Sun Prints: Science Meets Art!
Want to make cool designs using leaves and flowers with sunlight? Explore how the Sun's UV rays affect construction paper while creating beautiful art.
Explosive Elephant Toothpaste
Get ready to create a massive, bubbling tube of toothpaste using only hydrogen peroxide, yeast and dish soap!
Baking Soda Invisible Ink
Write secret messages using baking soda invisible ink and reveal them with grape juice in this cool science project!
Paper Airplane Challenge
Let's see which paper airplane can fly the farthest! Fold, decorate, and launch your own planes to find the winning design.
Camouflage and Hide
Learn how animals hide from predators and make your own moths invisible!
Exploring Air
Let's explore air and find out what it's like and where it's found!
Sparkling Rainbow Crystal
Make your own sparkling rainbow crystals at home with Borax and see science in action!
Walking Rainbow Experiment
Watch the colors of the rainbow magically walk from cup to cup in this science project!
Salt Volcano Lava Lamp
Create a lava lamp with an erupting volcano effect when you add salt to oil and water! It's so much fun to watch this colorful explosion caused by density!
Frozen Lava Lamp Fun
Create your own frozen lava lamp with colorful ice cubes and watch as mesmerizing colored water globules dance in clear oil.
Alka-Seltzer Lava Lamp
Watch blobs of color float and dance in a homemade lava lamp made with Alka-Seltzer tablets, oil and water!

What are some science concepts explored in preschooler science projects?

Each of these preschool science experiments is designed to introduce young children to important scientific principles. Even though young kids may not fully understand the scientific concept just yet, it's a fun way to spark their interest and curiosity in science. When they grow older and learn the science behind it, they'll remember these science experiments with fond memories!


Fun chemical reactions

Explore fizzy baking soda experiments with the Baking Soda Volcano, Swimming Raisins or Lava Lamp science projects!

Watch soap bubbles erupt when hydrogen peroxide, yeast and soap are mixed together in Elephant Toothpaste.

Dish soap and milk make colorful swirls constantly move in Magic Milk!

Exploring solids and liquids

Fun sensory play with frozen flowers as water transforms from solid to liquid.

Growing crystals

With time and patience, Borax crystals form on pipe cleaners in the Sparkling Rainbow Crystal science activity.

Capillary action

Follow different colored water as they travel along paper towels to make a colorful surprise with the Walking Rainbow Experiment!


Germinating seeds

Sprout seeds into plants with water, paper towels and time!

Flowers and leaves

Frozen Flower Sensory Play is great way to learn about the parts of flowers and leaves as they melt out from the ice.

Animal adaptation

Learn how animals camouflage and hide with this fun STEAM activity!


Solar system

Introduce the solar system to young kids with the solar system sensory bin.

Sun prints use the power of the sun for an art activity!

Make and then gaze at the mesmerizing galaxy in a bottle!


Even though we can't see air, we can explore air in this science project!


Discover the properties of light by mixing colors of light.


See how temperature affects water movement in this colorful science activity!


These engineering projects for preschoolers are perfect for a class activity, or even with with a group of kids at a birthday party or gathering!

It's super fun for kids to do these activities by themselves, but even more enjoyable when they participate in friendly competition with other kids to be inspired by everyone's creations!

What are some outdoor preschool science activities?

Head to the playground to explore gravity and friction

Slides can be used in playgrounds to learn about friction. Slide down sitting down on a piece of cardboard or thick fabric, and also without. What makes you go down faster on the slide?

Fold and fly paper airplanes

Fold different kinds of paper airplanes and see which flies the furthest. Have a paper airplane challenge with others to see whose plane flies the furthest!

Catch bugs

Put on your sunhat and head outdoors to see what bugs you can find! To catch flying insects, use a bug net. Also have a few jars with lids to catch creepy crawlies! Kids are naturally curious, so seeing insects up close provides a wonderful opportunity to spark their interest in the natural world and encourage them to learn more about insects. Look closely at it's color and shape and how many legs it has.

Collect leaves and flowers outdoors and continue with a warm or icy project!

Kids love to collect leaves and flowers, but make sure you have permission to pick leaves and flowers first. After having fun gathering leaves and flowers, here are two science activities for preschoolers for more fun!

Use the power of the sun to make Sun Prints with the leaves and flowers on construction paper! Leaves and flowers frozen into ice will transform into water in this fun Frozen Flower Sensory Play activity!

Go to the beach or forest and see what you find there!

The beach or forest are great places to introduce kids (and adults!) to many science topics and encourage curiosity! Are there rocks or pebbles? What shapes and colors can you find? What animals do you see? Are these animals there all-year-round, or are they just passing by during this season?

Learn about how animals camouflage and hide.

This fun STEAM art activity shows kids how animals can camouflage and hide.

What are some indoor science activities for preschoolers?

Science Museums

Science museums are great places to learn about science. Science museums, natural history museums, space museums, and discovery museums are all great places to do that! The museums usually have hands-on science activities for preschoolers to discover and explore science for themselves.

Don't worry about how much it costs to get into the science museum, as there may be free admission days or free passes to a science museum near you! Check your credit card for offers, your local library for free museum passes, and nearby science museums for free entrance days.

Find a science museum near you and wow kids with the wonders of science! From my childhood to adulthood, I'm still in awe whenever I visit a science museum!


These kid-friendly TV shows are easy, yet effective ways to teach kids about science. Check out our top picks for well-produced shows that incorporate science, technology, math and engineering into entertainment.

  • Ask the StoryBots (TV-Y, all children)

    "Ask the StoryBots" is a children's animated TV series that follows the adventures of five lovable creatures, answering questions submitted by young children, such as "Why do we have to brush our teeth?" and "How do airplanes fly?". Each episode features a new question, and the StoryBots go on an adventure to find the answer, learning important lessons along the way. The show is educational, engaging, and designed to encourage kids to be curious about science and ask questions about the world.

    Ask the Storybots on Netflix

  • Odd Squad (TV-Y, all children)

    Odd Squad is a math live-action children's series that follows the adventures of a young team of agents who use math skills, deductive reasoning, and teamwork to investigate and solve strange and unusual occurrences in their city.

    Odd Squad episodes (Oddtube) and activities on PBS Kids

Science Summer Camps

Summer is the best time for exploring science activities! Check out summer science camps at your local science museums.

These are popular science camps in the US:

California Science Center Summer Camp

  • Who: pre-K to 8th grade

  • Where: Los Angeles, California

  • What: day classes, scholarships available

Museum of Science & Industry

  • Who: pre-K to 12th grade

  • Where: Chicago, Illinois

What: single- to multi-day camps year round, scholarships available

Ready for some kindergarten science experiments?

Head on over to our kindergarten science experiments!

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