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Scientific Method
Test Description: Powerpoint notes in Life Science
Instructions: Answer all questions to get your test result.
1) Scientists often use experiments to test their ___, which are possible explanations for observations.
A
control group
B
hypotheses
C
predictions
D
theory
2) A set of related hypotheses that are supported by evidence may become accepted as a ___.
A
prediction
B
hypothesis
C
theory
D
controlled group
3) A hypothesis must be stated in a way that makes it __________.
A
a theory
B
illogical
C
testable
D
incorrect
4) In a ___ only one variable is changed at a time.
A
hypothesis
B
controlled experiment
C
data
D
theories
5) 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
include a control group that received no medicine
C
use different numbers of subjects in each treatment group.
D
simply ask the subjects about the medicine's affects
6) Science deals only with the _____.
A
planet Mars
B
solar system
C
natural world
D
student
7) In a controlled experiment ___.
A
a variable is not needed
B
control group is compared with one or more experimental groups
C
there are at least two variables
D
all factors should be different
8) In today's world, scientists form a global community. This means that ___.
A
scientists work on the same topic
B
each scientist works in isolation
C
scientists live in a single country
D
scientists share their results with other scientists
9) The set of skills or steps that scientists use to answer questions is the ___.
A
hypothesis
B
variable
C
scientific method
D
control group
10) Scientists propose ___ that can be ___ by examining evidence.
A
explanations/tested
B
explanations/tested
C
observations/proven
D
data/tested
*select an answer for all questions
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