Independent & Dependent Variable Notes

​Independent & Dependent Variable Notes

By Wanda Walker-Gary

Take out your pencil and notesheet

Read the slides, and write the correct answers and study for activity

What are variables?

• ​Variables are the parts in experient that are likely to change.
  Experiments have three types of variables:
  Independent variables

• Dependent variables

• Controlled variable (constants)

What is an independent variable?

​An independent variable is the variable that is changed by a scientist in an experiment.
Scientists make experiments using independent variables.

What is a dependent variable?

​A dependent variable is what is measured by a scientist in an experiment.
Scientists determine the experiment outcomewith the dependent variable.

How can you tell the variables apart?

​To tell the variables apart, ask yourself these
qusesions;
What is being changed on purpose? This is the independent variable (IV)

How can you tell the variables apart?

​What is being measured throughout or at the end of the experiment? This is the dependent variable (DV)