Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

This project examines whether and what associations exist between numbers and letters and colors.

This science fair project investigates why the number of visible stars changes from place to place.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

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

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

This project examines whether humans can intuitively grasp numeric values greater than three.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

This experiment tests which gender is better at catching how a magician performs his tricks.

Explore the effect of wind speed on the burning rate of a candle.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

This science fair project idea investigates how different disinfectants work in killing germs.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.