This science fair project idea explores how length affects the weight a bridge can hold.

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea investigates how color affects temperature.

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

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

This science fair project idea examines the reason boats are shaped and engineered.

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

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

This science fair project idea compares biodiversity between drops of water.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea explores substances that cause a bubble to last longer.

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

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea determines which method of hand cleansing is the most effective.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.