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Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Find out whether putting something on top of a plant will inhibit its growth.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

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

Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This experiment will evaluate how texting and talking on cell phones influence reaction time.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

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

Science fair project that examines the biodiversity of ant populations in various locations.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

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

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.