This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Demonstrate how to tell the age of an egg without having to crack it open.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

The objective of this science project is to determine the length of time for different seeds to germinate.

This science project allows students to study the psychology of happiness.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

This science fair project idea determines the most effective method of preserving food.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Test whether plants can grow without sunlight and water.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

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

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.