Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

Test whether plants can grow without sunlight and water.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

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

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This project compares the strength of one, two, and three-ply toilet paper.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.