Biology Experimental Design and Variables

The variable in an experiment deliberately changed by the scientist. The variable being tested.

• dependent variable

• independent variable

• data

• control group

Tags

NGSS.MS-PS1-2

A factor in an experiment that stays the same.

• control group

• constant

• dependent variable

• experimental group

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

Which would go on the y-axis?

• Time

• # of Bacteria 

What is an if....then statement that predicts the outcome of an experiment or how the Independent variable effects the dependent variable?

• Conclusion

• Materials

• Hypothesis

• Problem

Tags

NGSS.MS-PS2-2

What is the factor that an experimenter changes on purpose?

• Dependent Variable

• Independent Variable

• Constant

• Control

Tags

NGSS.MS-PS2-2

In this graph, what is the dependent variable? 

• Walla Walla Island

• Time

• Number of Deer

Tags

NGSS.MS-LS2-1

You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-2

The type of variable that you change or manipulate in an experiment.  It is what you are testing.

• Independent

• Dependent

• Control

Which of these would be the proper way to write a hypothesis

• I think the water will make the plant grow.

• Watering plants will make them grow better.

• If I add more water, then the plant will grow taller.

• Maybe water will make a plant grow taller.

Tags

NGSS.MS-LS1-5