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.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

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

This science fair project idea investigates how color affects temperature.

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

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

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

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Make a backbone model to explore human anatomy and life science.

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

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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