This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project idea investigates how the shape of an object affects drag.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

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.

This science fair project idea investigates the difference in reaction times between boys and girls.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.