Scientific Method: Question Preview (ID: 2339)

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Scientists propose ___ that can be ___ by examining evidence.
a) explanations/tested b) data/tested c) observations/proven d) explanations/tested
The set of skills or steps that scientists use to answer questions is the ___.
a) scientific method b) hypothesis c) control group d) variable
In today's world, scientists form a global community. This means that ___.
a) scientists live in a single country b) scientists work on the same topic c) each scientist works in isolation d) scientists share their results with other scientists
Science deals only with the _____.
a) planet Mars b) student c) natural world d) solar system
In a controlled experiment ___.
a) control group is compared with one or more experimental groups b) there are at least two variables c) all factors should be different d) a variable is not needed
In a ___ only one variable is changed at a time.
a) controlled experiment b) theories c) hypothesis d) data
A scientist who wants to study the possible side affects of a new medicine would probably ___.
a) give each experimental group the same dose of medicine b) simply ask the subjects about the medicine's affects c) include a control group that received no medicine d) use different numbers of subjects in each treatment group.
A hypothesis must be stated in a way that makes it __________.
a) incorrect b) illogical c) testable d) a theory
A set of related hypotheses that are supported by evidence may become accepted as a ___.
a) hypothesis b) theory c) prediction d) controlled group
Scientists often use experiments to test their ___, which are possible explanations for observations.
a) hypotheses b) predictions c) theory d) control group
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