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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?

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

Examine the effect of pressure on carbonation in soda.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea experiments with spinning color wheels and optical illusions.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Find out whether a longer airplane will fly farther or a wider paper airplane.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Find out which type of sponge holds the most water.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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 alcoholic fermentation at work by making your own soda.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.