Fair testing

The independent variable...

• is the thing we measure
• is the thing we draw
• is the thing we keep the same
• is the thing we change

The variable that we measure is called the...

• independent variable

• control variable

• dependent variable

• right variable

In a fair test you should...

• only change one variable (the independent variable)
• change all the variables 
• change no variables 

Tags

NGSS.MS-PS2-2

The control variables....

• are kept the same 
• are observed, measured and recorded
• are gotten rid of

A testable explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

Tags

NGSS.HS-PS1-2

A fair test means our results are...

• valid
• repeatable 
• both

Tags

NGSS.MS-PS2-2

Ms. Sosa wants to test her pet snail's favorite food, Which one should she use for a fair test?

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Amy wants to investigate which brand of batteries last longer. She want to use her MP3 player to test them.

Which of the following is the independent variable?

• Volume of the MP3 player

• Time of playing

• Brand of batteries

• Status of batteries (new/used)

• Size of batteries (AA, AAA, C, D...)

Amy wants to investigate which brand of batteries last longer. She want to use her MP3 player to test them.

Which of the following is the dependent variable?

• Volume of the MP3 player

• Time of playing

• Brand of batteries

• Status of batteries (new/used)

• Size of batteries (AA, AAA, C, D...)

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

• dependent variable
• independent variable
• data
• control group