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This science fair project idea explores the different properties & interactions of sugar molecules.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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.

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

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

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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

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

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

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

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 about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

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 determines which method of hand cleansing is the most effective.

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

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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.