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

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This project researches whether the type of land use affects the water quality of Queenstown Creek.

This science fair experiment examines the relationship between gender, age, and smiling.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

This science fair project idea determines which colors are more difficult to read at a distance.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

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.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

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 researches the effects of acid rain on plant growth.

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.

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

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.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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 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.