In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

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

In this challenge, students are tasked with creating a car that can be powered by a balloon!

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

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

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

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

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.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

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

Learn with makes water molecules work with this fun and easy science activity!

Find out whether matching resonant frequencies can cause objects to shatter.

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 kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.