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 apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

This experiment will explore if and where fractals can be found in the natural world.

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 activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

This science fair project idea investigates the relationship between memory and age.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Determine if gender affects the ability to identify different smells.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Here's a simple science activity that will help your child better understand how wells bring us water.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.