Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

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

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

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

Engineers in training can get started with this simple wheel-and-axle construction activity.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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!

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

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

This experiment investigates whether there are certain sounds that affect men and women differently

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

The purpose of this science fair project is to build a basic radio.

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

Give your budding young observers a chance to discover simple machines at use in their own home.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

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