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This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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.

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

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

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

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

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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:

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

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.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

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

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.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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

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.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

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

This science fair project idea studies how talking on a cell phone affect driving?

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

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.

This science fair project idea demonstrates sonar mapping of the ocean floor.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.