Find out whether a longer airplane will fly farther or a wider paper airplane.

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Start your toy engines -- this is going to be a fast and friction-filled race!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

In this project children practice the scientific method while playing with puffy paint.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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.

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