In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project outlines the uses of gold and explores the monetary value of gold.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project idea discovers the mechanism of laminar flow and encourages technological progress based on this concept.

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

This science fair project idea researches the effects of acid rain on plant growth.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

Test whether spot magnets can help improve the symptoms of an injury.

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

This science fair project idea identifies clouds as a means of predicting the weather.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.