This science fair project idea determines the probability of a coin landing heads or tails.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

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

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

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

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

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

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Determine how we can separate the components of a solution

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.

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.

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

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

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

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

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

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

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

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

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