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

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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 determines whether landscaping fabric impacts the ability of plants to receive water.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Use a dichotomous key to identify plants or animals.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

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

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

The project researches how lubricants affect the mechanical advantage of a pulley.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

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.

Science fair project that determines what neurons are, what they do and compiles this vital information in an illustrated book.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

This science project researches the correlation between barometric pressure and wind velocity.