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?

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

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

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

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.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.

The project determines which laundry detergent is best for cleaning clothes.

This science fair project idea investigates whether air has mass and weight.

The project determines which type of birds prefer which type of birdseed.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea investigates if fats add to the flavor of food.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

This science research project challenges students to think of more effective lobster farming methods.

Demonstrate how to tell the age of an egg without having to crack it open.

This science fair project will help students learn about non-vascular plants, such as mosses.