Experimental Design

If you were testing how well different dish soap cleaned grease, the independent (experimental) variable would be the:

• Dishes
• Water
• Dish Soap
• Types of Grease

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Which of the following questions would be an appropriate SCIENTIFIC question that could be tested by experimentation?

• Which type of bread goes moldy the fastest?
• Where do we go when we die?
• Is it a sin to transplant pig hearts into humans?
• Are llamas less valuable than camels?

Tags

NGSS.MS-LS1-5

Changeable elements of an experiment which can affect the outcome of the experiment if not carefully controlled are called:

• placebos
• variables
• quantitative elements
• control groups

Tags

NGSS.MS-PS2-2

The __________________ variable is the variable you are observing and that changes in response to the _________________ variable.

• independent (experimental), dependent
• dependent, independent (experimental)
• dependent, control
• independent (experimental), control

In the thumbs lab, wearing the shirt, buttoning 5 buttons, using the same shirt and the method of buttoning were the:

• independent variables
• controls
  hypothesis
• dependent variables
  independent variable
• constants
  dependent variable

The ONE thing you, as the experimenter, change is called the:

• control
• constants
• independent variable
• dependent variable

Tags

NGSS.MS-PS2-2

In an experiment, this is what you COMPARE your experimental data to so that you can see if anything changed (our time WITH thumbs):

• control
• constants
• problem
• independent variable

Tags

NGSS.MS-PS1-2

BooBoo believes that his plants grow so well because he is always playing music in his room. What is a question he might ask to test this?

• Does music have an affect on plant growth?
• Which music groups like plants?
• Does plant growth make music sound better?
• Why do dying plants hate music?

Tags

NGSS.MS-LS1-5

The number of variables that should be allowed to change in a well designed, controlled experiment is: 

• none
• 1
• 2 or more
• dependent on the type of experiment

Tags

NGSS.MS-PS3-4

A factor in an experiment that stays the same.

• control group
• constant
• dependent variable
• experimental group

Tags

NGSS.MS-PS2-2