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This science fair project idea demonstrates sonar mapping of the ocean floor.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

This project examines which style of central-air system filter traps the most particles from the air.

This experiment examines if space objects become round after reaching a certain mass.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

This science fair project idea determines how your body responds to allergies.

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Compare the ignition rates of various types of flame-retardant materials.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

This science fair project idea investigates the relationship between memory and age.

This project concerns activity happening millions of miles away, on the sun.

This science fair project idea investigates how images are influenced by changes in light.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

Science fair project that builds a magnetometer and demonstrate its uses.

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

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.