Scientific method and variables

What starts the scientific method?

• question

• hypothesis

• analysis

• conclusion

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?

• The Song
• The Reed
• The Applause

Mr. Krabbs is trying a new money making scheme.  On Tuesdays he is selling his crabby patties on multicolored buns.  He usually averages 25 customers per day.  On Tuesdays he now averages 27 customers. 
What was the dependent variable?

• The customers 
• The crabby patty
• The multicolored buns
• The number of customers

Data we get by using our senses.

• inferences
• observations
• hypothesis

Tags

NGSS.MS-LS1-8

What is a hypothesis?

• A hypothesis is the right answer to an experiment.
• A hypothesis is the wrong answer to an experiment.
• A hypothesis is an educated guess.
• I don't know.

Which variable do you measure?

• Independent
• Dependent

Tags

NGSS.MS-PS2-2

Which variable do you change in an experiment?

• Dependent
• Independent

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes
• It is what has always been done
• No one really knows

Tags

NGSS.MS-ETS1-4

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

Tags

NGSS.MS-PS2-2