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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea determines if the color of light affects the growth of plants.

Find out whether putting something on top of a plant will inhibit its growth.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Demonstrate how to tell the age of an egg without having to crack it open.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science research project challenges students to think of more effective lobster farming methods.

This science project allows students to study the psychology of happiness.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea examines liquids of different densities.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

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

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.