Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Cleaning can be a chore, but not with this sudsy experiment!

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

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

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

In this experiment we will be determining whether birds prefer certain colors of seed.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.