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

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

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.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea produces varying pitches of sound.

Learn whether writing things down really makes things easier to remember.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

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

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

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

This project examines whether people's taste perception is influenced by what they see.

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.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

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.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

Take a dive into the candy jar with this yummy science experiment.