This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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 do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

This science fair project idea investigates whether plants can survive being frozen.

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.

This science fair project idea determines if the color of light affects the growth of plants.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Find out whether putting something on top of a plant will inhibit its growth.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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