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.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Is your child struggling with the principles of magnetism? Here's a fun activity to demonstrate polarity and understand the basic principles of magnetism.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

An home science experiment for older students that teaches about the science behind heat.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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

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

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

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

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.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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!

Future whistleblowers can learn about product safety standards with this exercise in writing and researching.

Teach your preschooler some physics that she can relate to with this fun and simple activity!