what is the manipulated variable and what is the responding variable? ___________: ______ __________: ________

### Manipulated: volume Responding: pressure

## Step1: Identify the manipulated variable### The manipulated variable is the one that is changed or controlled in a scientific experiment to test the effects on the responding variable.## Step2: Identify the responding variable### The responding variable is the one that is observed and measured in response to the changes made to the manipulated variable.