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Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea experiments with spinning color wheels and optical illusions.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Construct batteries that make electricity from fruits with this fun science fair project.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This simple experiment serves as an introduction to the greenhouse effect.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

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

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Here's a simple and fun kindergarten or first grade gardening activity: grow a miniature container garden in a paper egg carton. Great for kinesthetic learners.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.