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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair project idea determines what household items are good conductors of electricity.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

This science fair project idea explores whether talking to a plant will help it grow.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This science fair project idea examines the reason boats are shaped and engineered.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project idea determines what household items are good conductors of electricity.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Science fair project that examines condensation and the conditions needed in order for dew to form.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This project determines what category of person is most likely to be ticklish.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

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.