Test whether plants can grow without sunlight and water.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this middle school activity, your child will learn how to press plants and create her very own herbarium, or plant library! Here's how:

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

This science fair project idea demonstrates that plants give off water.

Find out whether putting something on top of a plant will inhibit its growth.

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

Make edible amber fossils with your second grader to explore the fascinating world of science!

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Examine the impact of insecticides on plant growth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.