Applied Science - Variables

What is the independent 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 dependent variable?

• what we are changing or testing

• what we are observing or measuring

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

Tags

NGSS.MS-PS2-2

What are the control variables?

• what we are changing or testing

• what we are observing or measuring

• what we keep the same to make the experiment fair

Tags

NGSS.MS-PS2-2

Scientific Question: Does being late impact test scores?

What is the independent variable?

• test scores

• the time a student arrives to class

• amount of time to complete test

Scientific Question: Does being late impact test scores?

What is the dependent variable?

• test scores

• the time a student arrives to class

• amount of time to complete test

Scientific Question: Does being late impact test scores?

What is an example of a control 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 independent variable?

• if music is playing

• time to fall asleep

• person

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

What is the dependent variable?

• if music is playing

• time to fall asleep

• person

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

What is the control variable?

• if music is playing

• time to fall asleep

• person

The class were given a short course in speed reading. Mr Darling was curious if money could influence their performance on a test taken at the end of the course. Half the students were offered £5 for getting a certain percentage better at speed reading, the other half was offered no money. What is the dependent variable?

• Students being offered money or not.

• Their test scores.

• Their age in school years.

• The length of the course.