Nature Of Science Question Preview (ID: 38845)


Scientific Method, Variables, Inferences, Theory, Law. TEACHERS: click here for quick copy question ID numbers.

How many independent variables does an experiment have?
a) one
b) two
c) three
d) four

What is a logical conclusion based on observations called?
a) observation
b) experiment
c) inference
d) data

Scientific investigations include many different steps. During a scientific investigation, which step occurs after a scientist collects data?
a) draw conclusions
b) form the hypothesis
c) plan the experiment
d) follow the procedure

During a scientific investigation, which step will a scientist likely perform first?
a) Collect and organize data.
b) Plan the experimental procedure.
c) Define the problem for investigation.
d) Defend conclusions drawn from data.

Which of these answers best describes a scientific law?
a) an explanation based on the opinion of a scientist
b) a well-supported and widely accepted explanation of nature
c) a description of a specific relationship under given conditions
d) a statement describing what always happens under certain conditions

Which of these scientists would most likely engage in fieldwork to observe organisms
a) chemist
b) biologist
c) mathematician
d) physicist

Which term describes a collection of observations on which a scientific explanation is based
a) fieldwork
b) scientific law
c) empirical evidence
d) scientific theory

A chemist wants to examine specific chemical reactions and isolate certain products using a controlled experiment. How would the chemist perform this experiment?
a) by performing a survey
b) in a laboratory
c) in the field
d) by using scientific laws

The best description of a theory is...
a) an explanation based on opinion
b) a well-supported and widely accepted explanation of nature
c) a description of a specific relationship under given conditions
d) a statement describing what always happens under certain conditions

Which of these statements best describes how scientific ideas change?
a) New evidence leads to modification of ideas.
b) Scientific ideas rarely change, because they are based on extensive evidence.
c) As a scientific idea changes, it eventually becomes a scientific theory and then a law
d) Scientists form opinions based on evidence and decide how the idea should change

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