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

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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.

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 idea investigates the hardness property of minerals.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science experiment has students test whether a snail moves faster on concrete or dirt.

This project investigates the affect of storage temperature on microwave popcorn.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Discover whether a metal will expand under hot water.

This science fair project idea examines which type of insulation holds in the most heat.

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?

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this science fair project you will make a model of a cell membrane using very simple material.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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