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In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Word color association is just a fancy way to talk about the way we connect colors with words.

This science fair project idea explores whether color affects a person's emotional state.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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

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

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Discover how and which salt melts ice the quickest.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

Examine the effect of pressure on carbonation in soda.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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?

This biodiversity project examines the biodiversity in your own backyard.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.