How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project idea examines whether boys and girls differ in reflexes.

Here's a fun activity that will have your child teaching you for once, while you find out exactly what she is learning in school.

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

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

Explore whether pianists have the tendency to type faster than non-pianists.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Find out if most people can distinguish the difference between tones on different instruments.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.

This science fair project idea explores how far the average human can see.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

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

Evaluate the efficacy of different pain management techniques.