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

This science fair project idea examines liquids of different densities.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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.

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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.

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

This science fair project idea investigates whether plants can survive being frozen.

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

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.

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

This science fair project idea determines the most effective method of preserving food.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

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

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

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

This science fair project idea explores the different properties & interactions of sugar molecules.

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.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.