Science Ch. 1 T/F Question Preview (ID: 43427)
Section 1.
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All important scientific discoveries are made by professional scientists.
a) True
b) False
c) a
d) b
Scientific models have two basic types.
a) True
b) False
c) a
d) b
Variables are those factors that can be changed in an experiment.
a) True
b) False
c) a
d) b
When observing and recording the results of an experiment, observations may include both measurements and descriptions.
a) True
b) False
c) a
d) b
Using scientific methods means doing a professional experiment.
a) True
b) False
c) a
d) b
Laboratory safety is not an important concern for scientists.
a) True
b) False
c) a
d) b
If the results of a study do not support a hypothesis, it means that the experiment failed.
a) True
b) False
c) a
d) b
Scientific models are often used to help scientists understand a problem.
a) True
b) False
c) a
d) b
Computer models can be touched.
a) True
b) False
c) a
d) b
Einstein's idea model for his theory of relativity was also built as a physical model.
a) True
b) False
c) a
d) b
Once a scientific model has been created, it cannot be changed.
a) True
b) False
c) a
d) b
Although people of different races, sexes, and cultures have made scientific discoveries, they have all been adults, older than you.
a) True
b) False
c) a
d) b
The only way to test a hypothesis is by conducting a controlled experiement.
a) True
b) False
c) a
d) B
An important part of planning an experiment is determining the materials needed.
a) True
b) False
c) a
d) b
Data tables help you to organize your observations and test results.
a) True
b) False
c) a
d) b
Data are always numerical measurements.
a) True
b) False
c) a
d) b
A hypothesis is a decision based on the results of the experiment.
a) True
b) False
c) a
d) b
If it takes more than a few experiments to find the answer to a particular problem, it means that the scientist has failed and is not a very good researcher.
a) True
b) False
c) a
d) b
It is often necessary to look at the same problem in different ways in order to find an answer.
a) True
b) False
c) a
d) b
Models may change as new discoveries are made.
a) True
b) False
c) a
d) b
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