Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This experiment will investigate whether reward or punishment is more apt to motivate people.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

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!

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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