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

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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.”

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project idea produces varying pitches of sound.

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!

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

In this science fair project, students make their own rain gauge to measure rainfall.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

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

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.