Welcome to our collection of fun and easy science experiments, especially handpicked for our tiniest tinkerers and budding scientists. These experiments provide a safe and engaging environment for children to observe, question, and discover.
Activities on this list aren’t about complex theories or lengthy explanations; they’re about the joy of discovery, the magic of “why,” and the thrill of the “aha!” moment.
In the age of preschool kids, curiosity knows no bounds. Every raindrop is a mystery, every shadow a playful game, and every bubble a burst of joy. At this tender age, the line between magic and science is delightfully blurred, making it the perfect time to embark on whimsical experiments that tickle the imagination while fostering a foundational love for the wonders of the world.
Guided by experienced educators, each experiment is thoughtfully crafted to ensure age-appropriate materials, simple instructions, and plenty of opportunities for hands-on exploration.
1. Floating Dry Erase Rainbow and Shapes Experiment

The Floating Dry Erase Rainbow and Shapes Experiment is a captivating preschool science activity that engages young minds while introducing fundamental concepts of buoyancy and color mixing.
Learn more: Team Cartwright
2. The Oil and Water Experiment- Density Science

By combining oil and water in a clear container, students observe the distinct separation between the two substances due to their different densities.
Learn more: Play Trains
3. Make Ice Grow

This experiment sparks curiosity and wonder and teaches children about the states of matter and the scientific principle of freezing.
Learn more: Teach Preschool Org
4. Ice Cream in a Bag

The “Ice Cream in a Bag” experiment is a delightful preschool science activity combining hands-on fun and a tasty treat.
Learn more: Ice Cream in a Bag
5. Magic Milk

The “Magic Milk” experiment with fizzing milk is a captivating preschool science activity that combines chemistry and visual spectacle.
Learn more: Magic Milk
6. Walking on Raw Eggs

By placing raw eggs in a row on the ground and carefully stepping on them, students discover that the eggs can withstand their weight without breaking.
This experiment not only sparks excitement and awe but also encourages children to question and investigate the strength and structure of objects.
Learn more: Housing a Forest
7. Unicorn Fizz

The “Unicorn Fizz” experiment is a delightful preschool science activity that brings together a sense of wonder and the magic of unicorns.
Learn more: Unicorn Fizz
8. Unpoppable Bubbles

This hands-on and interactive activity encourages exploration, experimentation, and a sense of achievement when bubbles refuse to burst, making it a must-try for young scientists ready to challenge the laws of bubble physics.
Learn more: Unpoppable Balloons
9. Melting Ice

It’s a simple yet engaging activity that lays the foundation for understanding the principles of thermodynamics and encourages scientific inquiry, making it an ideal experiment for young learners eager to explore the wonders of science.
Learn more: Melting Ice
10. Exploring How Water Travels Through Leaves

The “Exploring How Water Travels Through Leaves” experiment is an exciting preschool science activity that allows children to discover the wonders of plant biology.
Learn more: Buggy and Buddy
11. Pepper and Soap

By sprinkling pepper onto a bowl of water and then gently touching the surface with a soapy finger, students witness the mesmerizing movement of pepper particles as they scatter away from the soap.
Learn more: Pepper and Soap
12. Rain Cloud in a Jar
This hands-on activity encourages observation, critical thinking, and a deeper understanding of weather phenomena, making it an exciting and educational experience for young learners eager to explore the science behind rain.
13. Making Color Disappear

The “Making Color Disappear” experiment is a captivating preschool science activity that introduces children to the magical world of color mixing.
Learn more: Making Color Disappear
14. Elephant Toothpaste

This hands-on and engaging activity fosters scientific inquiry, observation, and a sense of wonder, making it a must-try for young scientists eager to explore the fascinating world of chemistry.
Learn more: Elephant Toothpaste
15. Play Dough Volcano

This is a sensory and interactive activity that encourages exploration, observation, and scientific inquiry, making it a must-try for young scientists eager to unleash their inner volcanologists and have a blast while learning about the wonders of the natural world.
Learn more: Play Dough Volcano
16. Skittles Rainbow

By arranging a circle of colorful Skittles candies on a plate and adding a small amount of warm water, students can observe as the colors dissolve and blend together, creating a beautiful rainbow pattern.
Learn more: Skittles Rainbow
17. Rainbow Tower
By layering different liquids of varying densities, such as water, oil, and colored syrup, students can create a stunning rainbow tower in a clear container.
18. Balloon-Powered Car
By constructing a simple car out of everyday materials and attaching a balloon as the power source, students can witness the car zooming forward as the air escapes from the balloon.
19. Wind-Powered Car
By constructing a simple car using lightweight materials and attaching a small sail, students can observe how the wind propels the car forward.
20. Travelling Waters
The “Travelling Waters” experiment is a captivating preschool science activity that explores the concept of water absorption and movement.
21. Leak-proof Bag

Get ready to discover the wonders of a leak-proof bag experiment! This engaging pre-school science activity is a must-try for young explorers
Learn more: Leak-proof Bag
22. Magnetic Discovery Bottles

By filling transparent bottles with a combination of water, glitter, and an array of magnetic objects, children can witness the mesmerizing dance of magnetic forces.
Learn more: Magnetic Discovery Bottles
23. Water Xylophone
As they experiment with water levels and observe the corresponding changes in pitch, they’ll develop a deeper understanding of sound and vibrations.
24. Balloon Rocket Science
This hands-on activity not only sparks excitement but also introduces basic physics concepts in a playful and interactive manner.
25. LEGO Ice Excavation

Get ready to embark on a cool and captivating journey with LEGO ice excavation! This thrilling preschool science experiment is a must-try for young adventurers.
Learn more: LEGO Ice Excavation
26. Edible Butterfly Life Cycle

As they assemble and devour their edible creations, children will gain a deeper understanding of the miraculous transformation that butterflies undergo.
Learn more: Little Bins Little Hands
27. Penny Boat

As they experiment with different shapes and sizes, they’ll learn about buoyancy, weight distribution, and the principles of floating.
Learn more: Little Bins Little Hands
28. Salt Painting

Get ready to unleash your creativity with salt painting! This exciting pre-school art activity is a must-try for young artists. By using a mixture of salt, watercolors, and paper, children can create stunning and textured paintings.
Learn more: Salt Painting
29. String Telephone

This hands-on activity not only sparks imagination but also introduces the concept of sound transmission and vibrations.
Learn more: String Telephone
30. DIY Straw Rockets

Get ready for an exciting DIY adventure with straw rockets! This thrilling preschool science experiment is a must-try for young rocket scientists.
Learn more: DIY Straw Rocket
31. Dancing Corn

Through this simple yet enchanting experience, children will grasp the concept of air pressure and buoyancy in a fun-filled manner.
Learn more: Little Bins Little Hands
32. Egg Drop Challenge

The Egg Drop Challenge not only sparks enthusiasm for science but also nurtures teamwork and perseverance in little ones.
Learn more: Egg Drop Challenge
33. Rubber Egg (Egg in Vinegar)

Welcome to the fascinating world of the “Rubber Egg” experiment, where curious young minds will witness the extraordinary transformation of a regular egg into a bouncy, rubbery wonder!
Learn more: Little Bins Little Hands
34. LEGO Zipline

By constructing a simple zipline using LEGO bricks and a string, children get hands-on experience with the principles of gravity, motion, and engineering.
Learn more: LEGO Zipline
35. Blow Cup Challenge

The Blow Cup Challenge is a delightful and captivating preschool science experiment that will leave young learners amazed and eager to explore.
By blowing air into the cup, they witness the fantastic force of air pressure propelling the rocket upwards.
Learn more: Erintegration
36. How Strong Is the Spaghetti?

Through hands-on experimentation, they discover the principles of balance, stability, and load-bearing capacities.
This experiment not only encourages creativity and problem-solving but also introduces early engineering concepts in an engaging and approachable manner.
Learn more: Frugalfun4boys
37. Simple Static Electricity Experiment
The Simple Static Electricity Experiment offers an electrifying experience for preschoolers that sparks curiosity and wonder.
In this captivating activity, children explore the fascinating world of static electricity by rubbing balloons against different materials and observing the surprising effects.
38. Sedimentary Rocks Model

The Sedimentary Rocks Model offers an immersive and educational preschool science experiment that takes young learners on a fascinating geological adventure. In this hands-on activity, children get to create their own sedimentary rock models.
Learn more: Preschool Powol Pockets
39. Layers of the Earth

Through hands-on exploration, children will create a simplified Earth model using different materials to represent its layers: the crust, mantle, and core.
By understanding the composition of our planet, they’ll gain insight into the forces that shape the Earth’s surface and its interior.
Learn more: Red Ted Art
40. LEGO Pendulum Painting

By experimenting with different string lengths, weights, and paint colors, they discover how the motion of the pendulum influences the patterns it creates.
Learn more: LEGO Pendulum
41. Easy Printable Shadow Puppets

Create easy printable shadow puppets by designing simple shapes or characters on paper and cutting them out. Attach each shape to a popsicle stick or straw. Then, shine a light source behind a white screen or wall, and have children hold the puppets between the light and the screen to cast shadows.
Learn more: Little Bins for Little Hands
42. How Do Lungs Work?

Using a paper bag and straws, you can demonstrate the basic concept of how lungs work through a simple activity. First, inflate the paper bag by blowing air into it through a straw. This action mimics the inhalation process where the diaphragm contracts and the chest cavity expands, allowing air to enter the lungs.
Learn more: Kindergarten and Worksheet and Games
43. Sense of Touch Activities

To create a sense of touch activity paper, start by drawing various hand shapes on a piece of paper. Next, add different textures to each hand drawing using materials such as sandpaper, cotton balls, fabric, aluminum foil, and bubble wrap.
Learn more: Stay at Home Educator
44. Magnet Sorting Activity

By using magnets to sort and categorize a variety of objects, children can witness the invisible forces at play and gain a basic understanding of magnetic properties.
Learn more: Me for Less
45. Easy Grow a Rainbow on Paper Towel

By watching as colors spread and blend on a paper towel with just a few simple materials, young learners can grasp the concept of capillary action and absorption.
Learn more: Mom Brite
46. Sunscreen Activity

To create a sunscreen activity on paper, start by drawing a simple outline of a person or a sun on a sheet of paper. Next, provide children with sunscreen lotion and paintbrushes.
Instruct them to “apply” sunscreen to the drawing using the paintbrushes and lotion. As they “apply” the sunscreen, discuss the importance of sun protection and how sunscreen helps to protect the skin from harmful UV rays.
Learn more: 123Homeschool 4 Me
47. The Floor is Lava

To play “The Floor is Lava” using cups and toys, set up a designated play area and scatter cups or other safe objects around the room to act as stepping stones or islands. The objective is for players to put the toys above the cup and stack it as high as possible on the cups and layering without touching the floor, which represents lava
Learn more: Forward with Fun
48. Make a Fake Snow

Creating fake snow is an enchanting preschool science activity that brings the magic of winter indoors. With just a few household ingredients, young learners can experience the transformation of a liquid into fluffy, snow-like material.
Learn more: Elf on the Shelf
49. Playground Science Activity

This Activity explores scientific principles on playground slides, including gravity, friction, and motion. Students observe how factors like the slide’s angle and surface material affect their descent.
Learn more: Buggy and Buddy
50. Lemon and Watercolor

Lemon and Watercolor is an art activity where students use lemon juice as a natural “paint” to create unique designs on paper when combined with watercolor paint.
Learn more: Friends and Art Lab
51. Dry Erase Marker

By drawing with dry erase markers and observing how they can be easily wiped away, students can learn about the concepts of solubility, surface tension, and the science behind markers.
Learn more: 123Homeschool 4 Me
52. Paper Towel Art

Paper Towel Art is a creative activity where students use paper towels as a medium for artistic expression. Teachers provide students with paper towels and various coloring materials such as markers, watercolor paints, or food coloring.
Learn more: Messy Little Monster
53. Homemade Pan Flutes

Homemade Pan Flutes are musical instruments made from a series of tubes of varying lengths bound together. Students can create pan flutes using materials like straws, PVC pipes, or even drinking straws.
Learn more: Buggy and Buddy
54. Make a Paper Cup Phone

This Activity involves creating a Paper Cup Phone using paper cups and string to explore sound transmission. Students poke holes in the bottom of two paper cups and thread a string through each cup, creating a taut line between them.
Learn more: There’s Just One Mommy
55. Learn Why We Have Night and Day

Using a paper plate, students can learn about the concept of night and day through a simple and engaging activity. By drawing a sun on one half of the paper plate and a moon on the other half, teachers can demonstrate how the Earth’s rotation causes the cycle of day and night.
Learn more: Universe Awareness
56. Will It Melt? Candy Science Activity

The “Will It Melt? Candy Science Activity” marking activity sheet provides a structured way for students to record their observations and conclusions during the experiment. The sheet typically includes columns for listing the types of candies tested, predicting whether each candy will melt, and recording the actual outcomes after applying heat.
Learn more: Playdough Potato
57. Mirrors and Reflections Activity

Mirrors and Reflections is an educational exploration of the properties of light and reflection. In this activity, students observe how light behaves when it strikes a mirror surface and reflects back
Learn more: Buggy and Buddy
58. Amazing Bending Pencil Activity

The Amazing Bending Pencil Activity is a captivating experiment that explores the science of light refraction. In this activity, students place a pencil partially submerged in a glass of water and observe how the pencil appears to bend or break at the water’s surface.
Learn more: Steamsational
59. Weathervane

Creating a DIY weathervane is a hands-on activity that allows students to explore the science of wind direction and weather monitoring. To make a simple weathervane, students can use materials such as a pencil, a straw, a piece of paper, and a pin.
Learn more: Rookie Parenting
60. DIY Balance Scales

Creating DIY balance scales is an engaging activity that allows students to explore the concept of weight and balance. To make a simple balance scale, students can use materials such as paper cups, string, a ruler, and small objects for weights.
Learn more: Wiki how
61. Create Your Own Weather Chart

Creating your own weather chart is a practical and educational activity that helps students track and analyze daily weather patterns. To make a weather chart, students can use materials such as poster board or a large sheet of paper, markers, and weather symbols or stickers.
Learn more: Simply Today Life
62. Windsock Craft

Windsock Croft is a creative activity where students design and construct their own windsocks to observe wind direction and speed. Using materials such as paper, stickers to decorate, markers, and string, students create cylindrical shapes with an open end and attach streamers or ribbons to the bottom for visual effect.
Learn more: Stir the Wonder
63. Salt Painting

Salt painting is a creative art activity that involves using salt to create textured and vibrant paintings. Students begin by applying glue or a sticky substance, such as liquid watercolors or diluted white glue, onto a piece of paper in the desired design.
Learn more: The Best Painting for Kids
64. Eye Dropper Dot Counting

Eye Dropper Dot Counting is a where students use an eye dropper to drop colored water onto a paper or surface and then count the number of drops, they have made. This activity can be done with pre-printed dot grids or blank paper where students can create their own dot patterns.
Learn more: Teach Beside Me