Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

I scream, you scream, we all scream for homemade spearmint ice cream!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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

This classic children's game demonstrates how sound travels through air vs. through a solid.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science fair project idea produces varying pitches of sound.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this fun activity, your child will create their very own solar oven to bake s'mores!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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?

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.