images-CMC

Section 3: Scientific Methods

Scientific Methods

1.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/8881234567/179000/1_3.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (22.0K)</a>

A hypothesis is more likely to become a __________ because __________.
A)scientific law; fewer trials are needed during the experimental phase
B)scientific law; theories are conclusions reached by many scientists about relationships in nature
C)theory, fewer experiments are needed in order to support it
D)theory, scientific laws are conclusions reached by many scientists about relationships in nature
2.
The general term for a systematic approach used in scientific study is _______________.
A)the scientific method
B)qualitative analysis
C)quantitative analysis
D)the scientific controversy
3.
The type of data that is descriptive in nature is ___________.
A)quantitative data
B)qualitative data
C)random data
D)hypothetical data
4.
What is the name given to a set of controlled observations that test a proposed explanation?
A)hypothesis
B)experiment
C)theory
D)conclusion
5.
The variable that you plan to change during the course of an experiment is ___________.
A)the independent variable
B)the dependent variable
C)a constant
D)a control
6.
A judgment based upon the results of an experiment is a _____________.
A)hypothesis
B)theory
C)variable
D)conclusion
7.
When an explanation has been supported by many experiments, the explanation is a __________.
A)hypothesis
B)theory
C)law
D)model
8.
A tentative explanation for a series of observations is a __________.
A)hypothesis
B)theory
C)law
D)model
9.
A ________ can be used to help visualize microscopic structures and events.
A)variable
B)hypothesis
C)theory
D)model
10.
Suppose that you experimentally determine the mass of nylon formed as a result of each of several similar chemical processes. What are the measurements of mass called?
A)qualitative data
B)independent variables
C)controls
D)quantitative data
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.