This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores the different properties of matter.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

Using a toy race car kids create a visual model of the Doppler Effect.

This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This science fair project idea determines the most effective method of preserving food.

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

This science fair project idea investigates the difference in reaction times between boys and girls.

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

Science fair project that creates fog using bottles of hot and cold water.

This science fair project idea produces varying pitches of sound.

This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.

Determine which metal has the highest rate of conductivity.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.