Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This science fair project idea examines the reason boats are shaped and engineered.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This science fair project idea experiments with spinning color wheels and optical illusions.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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.

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.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

The goal of this project is to create an exciting topographical map out of dough.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!