Variables

This variable is the one thing that changed on purpose...

• Dependent Variable

• Control

• Independent Variable

What is the DEPENDENT variable (effect) in this experiment?

"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

Why do we use graphs in science?

• to record and display data

• to show trends in data

• to predict what will happen if we extend the experiment

• all of these are correct

What is the manipulated variable?

• what we are changing or testing

• what we are observing or measuring

• what we keep the same to make the experiment fair

What is the responding variable?

• what we are changing or testing

• what we are observing or measuring

• what we are keeping the same to make the experiment fair

What are the constant variables?

• what we are changing or testing

• what we are observing or measuring

• what we keep the same to make the experiment fair

Scientific Question: Does being tardy impact test scores?

What is the manipulated variable?

• test scores

• the time a student arrives to class

• amount of time to complete test

Scientific Question: Does being tardy impact test scores?

What is the responding variable?

• test scores

• the time a student arrives to class

• amount of time to complete test

Scientific Question: Does being tardy impact test scores?

What is one of the constant variables?

• test scores

• the time a student arrives to class

• amount of time to complete test

Scientific Question: Will a person fall asleep faster if they listen to music?

What is the manipulated variable?

• music

• time to fall asleep

• person