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.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

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

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

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

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

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

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

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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

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!

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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!

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

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!

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

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.

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.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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!

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

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

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!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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!