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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

The project determines which type of birds prefer which type of birdseed.

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.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this project children practice the scientific method while playing with puffy paint.

In this project students experiment with making music using only glasses of water.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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

This project investigates the affect of storage temperature on microwave popcorn.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

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