Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Discover whether a metal will expand under hot water.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!