How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Word color association is just a fancy way to talk about the way we connect colors with words.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science fair project idea produces sounds by creating vibrations using different objects.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This project determines what category of person is most likely to be ticklish.

Examine the effect of pressure on carbonation in soda.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Make a backbone model to explore human anatomy and life science.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

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

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores the different properties of matter.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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!

In this fun activity, your child will create their very own solar oven to bake s'mores!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Here's a science activity to help your child investigate how seeds are designed to travel.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.