Scientific Method /Evolution Quiz

During an experiment, which factors must be controlled so that researchers can draw a logical conclusion from the experiment?

• variables
• inquiries
• theories
• operational definitions

Tags

NGSS.MS-PS2-2

The standard to which you compare the results of an experiment is called

• constant
• control group
• independent variable
• dependent variable

During an experiment, if you purposely change the temperature to test a hypothesis, the temp is called the

• independent variable
• operational variable
• dependent variable
• responding variable

Tags

NGSS.MS-PS3-4

Observations that deal with a number or amount are called

• manipulated observations
• operational observations
• qualitative observations
• quantitative observations

Which of the following is a valid reason why a scientist might reject a scientific theory?

• It covers too broad a topic
• New evidence contradicts it
• It is too old
• Some people disagree with it

Tags

NGSS.MS-LS2-4

An explanation that ties together many hypotheses and explanations is called a(n)

• model
• concept
• theory
• investigation

The easy way to pick out an experiments responding (DV) variable is to look for:

• What was purposefully changed
• Number of trials
• What's being measured
• The test group

Tags

NGSS.MS-PS2-2

If I add sliced garlic to my aquarium water, then my fish will eat a lot. The IV in this hypothesis is:

• Adding garlic to the aquarium

• The fish eating a lot

Tags

NGSS.MS-LS2-4

What is the part of the experiment that is left alone or “natural", and is used to compare back to?

• Independent Variable
• Dependent Variable
• Control Group
• Experimental Group 

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis