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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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.

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

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

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.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Construct and experiment with a periscope using reflected light rays to gather an image.

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

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.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

The goal of this project is to create an exciting topographical map out of dough.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

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

In this project, the affects of vitamin E are observed on a rose petal.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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.

This science fair project idea examines liquids of different densities.

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.

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

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