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Preschool - 4th Grade Physical Science Activities

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Bounce an Egg

What&#39;s a liquid? What&#39;s a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Ice Cream Science

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Make Your Own Soap

This science fair project idea experiments with spinning color wheels and optical illusions.

A Trick for the Eyes: Color Wheels and Optical Illusion Tops

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Growing Jack-o'-Lantern

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Homemade Frozen Yogurt

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Testing the Solubility of Common Liquid Solvents

This science fair project idea explores whether talking to a plant will help it grow.

Talking to Plants

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don&#39;t!

Spinning Science: Disappearing Color!

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Candle Burning Experiment

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Vinegar and Baking Soda Balloon

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Make a Paper Helicopter

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Make a Parachute Toy

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Marble Physics

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

How to Separate Salt from Water

This science fair project idea produces varying pitches of sound.

Changing the Pitch of Sound

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

DIY Pinwheels

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Keep a Candle Burning Underwater!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

What Happens When Oil and Water Get Together?

This classic children&#39;s game demonstrates how sound travels through air vs. through a solid.

How Sound Travels Through Air and Solids

How powerful is the reaction between baking soda and vinegar? Find out here!

Baking Soda and Vinegar Balloon

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

A Thunderous Sound

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

States of Matter in a Baggie

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Taste Test Science: Fool Your Tongue!

This classic children&#39;s game-connecting two cups with a string-demonstrates sound&#39;s ability to travel through air vs through a solid.

The Speed of Sound on a String

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

The Science of Sound

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.

Make Your Own Fairy Potion

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

How A Kazoo Makes Sounds

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Create a Sandwich Bag Explosion!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Celery and Food Coloring Experiment

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