In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

This science fair project idea determines the probability of a coin landing heads or tails.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This biodiversity project examines the biodiversity in your own backyard.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

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.

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

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project teaches students the differences between fruits and vegetables.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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.