Physical Science Activities

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

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

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.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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

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

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

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

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

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

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.

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

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

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!

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

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

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.