Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Thoroughly research image search engines. Consider possible improvements for visual search engines. Help design better image-matching engines.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project teaches students about wilting and browning of salad greens.

This social science experiment assesses whether the timing of peak mental performance shifts from afternoon to morning as we age.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

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.

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

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

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

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.