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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

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

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

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea investigates how color affects temperature.

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

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.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

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

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

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

This science fair project idea investigates the difference in reaction times between boys and girls.

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.

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

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

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 looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.