Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Test out various brands of permanent markers to see which one is least water soluble.

This project investigates the affect of storage temperature on microwave popcorn.

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.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This experiment observes inattentional blindness and investigates whether certain age groups or genders are more likely to demonstrate this phenomenon.

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.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Think about the adaptive utility of an important aspect of our physiology.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.