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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
theory
B
hypotheses
C
predictions
D
control group
2) A set of related hypotheses that are supported by evidence may become accepted as a ___.
A
prediction
B
controlled group
C
hypothesis
D
theory
3) A hypothesis must be stated in a way that makes it __________.
A
illogical
B
incorrect
C
a theory
D
testable
4) In a ___ only one variable is changed at a time.
A
controlled experiment
B
data
C
theories
D
hypothesis
5) A scientist who wants to study the possible side affects of a new medicine would probably ___.
A
simply ask the subjects about the medicine's affects
B
use different numbers of subjects in each treatment group.
C
include a control group that received no medicine
D
give each experimental group the same dose of medicine
6) Science deals only with the _____.
A
student
B
planet Mars
C
natural world
D
solar system
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
scientists share their results with other scientists
C
each scientist works in isolation
D
scientists live in a single country
9) The set of skills or steps that scientists use to answer questions is the ___.
A
hypothesis
B
variable
C
control group
D
scientific method
10) Scientists propose ___ that can be ___ by examining evidence.
A
observations/proven
B
explanations/tested
C
data/tested
D
explanations/tested
*select an answer for all questions
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