| A | B |
|---|
| graph | a visual representation of data |
| scatterplot (XY graph) | a graph of two variable thought to be related |
| independent variable | a variable that you believe might influence another variable |
| independent variable | manipulated variable |
| dependent variable | the variable that you believe is influenced by the independent variable |
| dependent variable | responding variable |
| direct relationship | a relationship in which one variable increases with an increase in another variable |
| inverse relationship | a relationship in which one variable decreases when another increases |
| experiment | a situation specifically set up to investigate relationships between variables |
| system | a group of variables that are related |
| experimental variable | the variable that change in an experiment |
| variable | a factor that affects how an experiment |
| control variable | a variable that is kept constant (the same) in an experiment |
| trial | each time an experiment is tried |
| experimental technique | the exact procedure that is followed each time in an experiment is repeated |
| procedure | a collection of all the techniques you use to do an experiment |
