ISO/Shutterspeed tests

Over this week, we have been taking pictures with different ISO and Shutterspeeds. Here, I was testing different shutter speeds. Shutter speed is when the amount of light that reaches the film is proportional to the exposure time. This is my friend Cammie jumping.

This is testing shutterspeed, with a low ISO. 

Here is my friend CC helping me with different ISO settings. ISO is the measure of a photograph's film sensitivity to light. On this picture, we used a higher ISO. As you can tell, the picture came out brighter.

Here, we used a lower ISO. The picture as you can tell is darker than the first. 

In this picture below, I used an even lower ISO. You can tell as the whit walls are now yellow, and the space looks dreary.