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This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Help your child add some flair to the family garden with pencil pinwheels!

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Test whether spot magnets can help improve the symptoms of an injury.

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

Construct and experiment with a periscope using reflected light rays to gather an image.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.