Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

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

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

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

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.

This science fair project idea's objective is to understand the concept of air pollution and examine the quality of air in our environments.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

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

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

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

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

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

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.