Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

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!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

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

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

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.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.