Unit 1 Biology

All of the following are an important part of scientific methodology EXCEPT

• collecting and analyzing data

• making observations

• drawing conclusions and communicating results

• proving a hypothesis correct

• performing a controlled experiment

"The kitchen smells like cookies." This statement is a/an

• quantitative observation

• inference

• qualitative observation

• hypothesis

The variable chosen/manipulated by the experimenter to test in an experiment is the

• controlled variable

• independent variable

• dependent variable

• constant variable

In an experiment testing the effect of different types of fertilizers on plants, one variable that should be kept constant is

• the amount of fertilizer

• the type of plant

• the amount of sunlight

• all of the above

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS2-1

which of the following statements concerning scientific hypotheses is false?

• they must be testable by experimentation

• they are not always correct

• they are the same as theories

• they are constructed based on observations

Tags

NGSS.MS-PS3-5

The human body works to keep blood within a certain pH range. This is an example of

• digestion

• homeostasis

• synthesis

• respiration

Tags

NGSS.HS-LS1-3

A ______________ is a testable explanation for a question or problem; an educated guess.

• Hypothesis
• Control
• Constant
• Conclusion

The thing that is measured in an experiment.

• Independent Variable
• Dependent Variable
• Control
• Constant

Experiments need to be repeated in order to be considered valid because you need to get the same or similar results each time.

• True
• False

Living things change during their lives through

• reproduction
• growth and development
• making responses
• adaption and organization