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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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

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

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

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.

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.

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

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

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

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.

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

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!

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

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

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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

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

This science fair project idea produces sounds by creating vibrations using different objects.

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.

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