The 3 pillars of Photography Review

Aperture- Aperture controls how much light goes into the camera. Aperture is measured in f-stops, where the smaller the f-stop, the more light goes into the picture and the bigger the hole. A larger f-stop will also make the foreground clear and the background blurred out.

Shutter speed- Shutter speed is how fast the shutter takes the picture and allows light to come into the camera. Shutter speed is measured in seconds, and the larger the time, the more blurred moving objects are. With a short shutter speed, the camera takes a picture that looks as if time had stopped, and moving objects are still and clear. The darker the area you are shooting in, the longer you want the shutter speed to be.

ISO- With a higher ISO, you can freeze motion easier without a higher shutter speed. But with more ISO, the "noise " in the background increases. What that means is that your pictures become more gritty and pixelated. You can also increase the ISO for more light to come in, but you generally want to keep your ISO as low as possible.