Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.