Katelyn's Science Fair 1999

SALINITY’S AFFECTS ON THE REFRACTION OF

LIGHT THROUGH WATER

ABSTRACT:

My science fair experiment dealt with salinity’s affects on the refraction of light through water. The materials I used throughout conducting this experiment were Kosher salt, a strong laser beam, a clear glass container, water, a scale measuring grams, and recording devices.

I researched to find the difference(s) between the laser points recorded as I added more salt to the water.

My hypothesis was quite simple. I predicted that there would, in fact, be differences in the results. I expected that there would be a greater refraction, or difference between the points, as I added more salt. So, in other words, the higher the concentration of salt, the greater the refraction through water.

My results were not as clear as I had hoped, but they did indicate a difference. I discovered that the greater the amount of salt throughout the water, the less the water refracted. This was not as I had previously foreseen, but was exhibited throughout each trial.

 

This project recieved an Honorable Mention

Awards for science