This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea investigates the difference in reaction times between boys and girls.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

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.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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 are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

In this science fair project, students create their own miniature salt flats at home.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Science fair project that examines condensation and the conditions needed in order for dew to form.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project idea explores the different properties of matter.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This project explores ways to prevent static electrical shocks.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.