This science fair project idea examines liquids of different densities.

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?

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

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.

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.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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

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.

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

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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.

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

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

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

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

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Do you think heat can affect a plant's growth rate?

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

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

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."