This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

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

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

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

This science fair project idea explores the egg's thin membrane.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

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

Test whether plants can grow without sunlight and water.

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

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Will increasing the amount of salt in water effect how slow or fast the water freezes?

This science fair project idea explores how length affects the weight a bridge can hold.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Learn how different types of soil affect how animal tracks form in this experiment!

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

In this experiment we will be determining whether birds prefer certain colors of seed.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea investigates whether plants can survive being frozen.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.