Glencoe Science Level Green

Chapter 1: The Nature of Science

Section 2 Self-Check Quiz-Eng.

1
Scientific methods are __________ of scientific problem solving.
A)guesses
B)hypotheses
C)step-by-step procedures
D)random studies
2
All scientific methods include __________.
A)steps
B)experiments
C)library research
D)lots of work
3
What is the first step in solving a problem?
A)recognizing the problem
B)book research
C)conclusions
D)assigning variables
4
The Internet, the library, and laboratory work are examples of what?
A)research options
B)conclusions
C)hypotheses
D)experiments
5
Scientists make observations with their __________.
A)mind
B)senses
C)research
D)guessing abilities
6
Inferences are __________ about an observation.
A)assumptions
B)known information
C)senses
D)conclusions
7
"If I oil the gears in my bike, then it will go faster," is an example of __________.
A)a hypothesis
B)an observation
C)an inference
D)a scientific method
8
A __________ describes the behavior of something in nature.
A)theory
B)law
C)hypothesis
D)inference
9
Hypotheses must be __________.
A)proved
B)disproved
C)tested
D)observed
10
What is measured in an experiment?
A)an independent variable
B)a dependent variable
C)a constant
D)a control
11
Controls in an experiment __________.
A)do not change
B)always change
C)sometimes change
D)are seldom used
12
Before further experiments are done on a subject, the data must be __________.
A)verified
B)analyzed
C)thrown out
D)researched
13
When an experiment returns data that are valid, it means that __________?
A)the experiment is repeatable
B)the experiment was a failure
C)the hypothesis was wrong
D)the variables changed
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