Intro to Physical Science

A variable is something you're trying to measure. It can be practically anything, such as objects, amounts of time, feelings, events, or ideas. If you're studying how people feel about different television shows, the variables in that experiment are television shows and feelings. If you're studying how different types of fertilizer affect how tall plants grow, the variables are type of fertilizer and plant height.

Independent variable: What the scientist changes or what changes on its own. (ie. what I do)

Dependent variable: What is being studied/measured. (ie. what depends on what I do)