Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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

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.

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

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

The purpose of this science fair project is to build a basic radio.

This science project teaches students to classify different shapes of leaves.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.