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PS-1.1: Hypotheses
Test Description: Define, identify, generate hypotheses
Instructions: Answer all questions to get your test result.
1) A hypothesis is a
A
true statement
B
wild guess
C
reasonable, testable, explanation of an observation
D
conclusion of a scientific investigation
2) Hypotheses
A
are of no value if the experimental data do not support them.
B
must always be supported by the experimental data.
C
may or may not be supported by the experimental data.
D
are always true.
3) Sources of information used to write hypotheses must be
A
relevant.
B
accurate.
C
all of the above.
D
credible.
4) Credible means
A
unsupported.
B
trustworthy.
C
related to the topic of the investigation.
D
correct - based on supported data.
5) Accurate means
A
trustworthy.
B
related to the topic of the investigation.
C
correct - based on supported data.
D
unsupported.
6) Relevant means
A
unsupported.
B
trustworthy.
C
related to the topic of the investigation.
D
correct - based on supported data.
7) The results of an experiment
A
all of the above.
B
can either support or not support the hypothesis.
C
are only useful if they support the hypothesis.
D
can prove that a hypothesis is true.
8) The formula for writting a hypothesis is
A
If the [IV] increases or decreases, then the [DV] increases or decreases.
B
The [IV] always decreases when the[DV] increases.
C
If the [DV] increases or decreases, then the [IV] increases or decreases.
D
The [IV] increases when the [DV] increases.
9) Which of the following is a correctly written hypothesis?
A
If the amount of hydrogen ions in a solution increases, then the pH will decrease.
B
All baseballs are spheres.
C
When water freezes, it gets colder.
D
I think the sunlight will affect the plants.
10) When hypotheses are tested over and over and always support the data,
A
they are accepted as true.
B
they cannot be changed or modified.
C
their is no need to keep on testing them.
D
they become known as laws or principles.
*select an answer for all questions
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