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!

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

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

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

The objective of this science fair project is to investigate salt water density.

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 whether air has mass and weight.

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

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

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

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 investigates how the shape of an object affects drag.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

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

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

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

In this science fair project, young children notice and track changes in trees throughout the year.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.