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.

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

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

Teach your preschooler some physics that she can relate to with this fun and simple activity!

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

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

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

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

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

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

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

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

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.