This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project idea explores whether white light can be separated into different colors.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Cleaning can be a chore, but not with this sudsy experiment!

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Explore if planting seeds in a certain direction will affect how fast it germinates.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

In this project children practice the scientific method while playing with puffy paint.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This project determines what category of person is most likely to be ticklish.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this project, the affect of acid rain is simulated by the acid, vinegar.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.