Controlled Experiment CW: Warm Up: Controlled Experiment Notes Paper Basketball Exit Ticket HW: 1) None Warm Up: What does a controlled experiment mean?

Variables Notes

Variables Variables A. Something in the experiment that will change. Vari means to change. B. To make an investigation scientific you have to have an independent variable and a dependent variable

Independent Variables A. The variable that is purposefully changed (scientist will change) B. Can have only ONE in an investigation Examples: amount of water, time, mass, temperature

Dependent Variable Dependent Variable A. The variable that changes in response to the independent variable (usually measured in an investigation) Examples: time it takes to evaporate, bounce height of the ball, distance traveled

Controls Control for an Experiment A. Control – the normal conditions for the experiment that everything will be compared back to

Constant Constants/ Controlled variables A. Things that are kept the same throughout the entire investigation Examples: same location, same temperature, same conditions

Paper Basketball

Scenario Mr. Sutphin wants to know how the type of paper affects his chances of making a basket. IV: This is my independent variable because… DV: This is my dependent variable because…

What do you predict will happen? I predict that when you _____________, then _____________ because.

Data Collection In your notebook, organize your data in a data table.

Variable Exit Ticket Mr. Sutphin wants to know how time of day affects how far he can go on a run. IV: ___________ DV:___________ Constant: ______