What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

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

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This science fair project idea discovers the principle of conservation of mass.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Science fair project in which you will start a fire from scratch without using matches or a lighter.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

Science fair project that determines whether mass and weight are the same or different.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

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

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 does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

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