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7/8 Grade Chapter 1 Review
Test Description: Test review
Instructions: Answer all questions to get your test result.
1) A series of steps scientists follow to solve problems are
A
variables
B
hypotheses
C
scientific methods
D
controlled experiments
2) Possible explanations or answers to questions are
A
variables
B
scientific methods
C
hypotheses
D
controlled experiments
3) Experiments that test only one factor at a time, and which consist of a control group and one or more experimental groups are
A
hypotheses
B
controlled experiment
C
variables
D
scientific methods
4) The one factor that differs between a control group and the experimental group in a controlled experiment is the
A
hypothesis
B
controlled experiment
C
variable
D
scientific method
5) Which of the following is a good way to analyze data?
A
try to find some way to make it support your hypothesis
B
organize it into charts and graphs, do calculations if necessary
C
put it away for a few months to see if it makes more sense later
D
check it over and copy it
6) What is a model?
A
a smaller version of the real thing
B
a representation of an object or system
C
a nonworking copy
D
a possible substitute for a hypothesis
7) What is a scientific theory?
A
the first idea to explain an observation or hypothesis
B
an explanation that ties together many questions and answers
C
an explanation that ties together many tested hypotheses and observtions
D
the best idea to explain an observation or hypothesis
8) What is a scientific law?
A
the final answer to a scientific question
B
an explanation of many experimental results and observations
C
an explanation of hypotheses, results, and observations
D
a scientific statement of how something works, not why
9) a person who studies volcanoes is called a
A
volcanologist
B
biologist
C
zoologist
D
geochemist
10) A person who studies the lives of animals is a
A
zoologist
B
oceanographer
C
mechanic
D
geochemist
11) a person who uses science to solve problems involving machines is called a
A
biologist
B
zoologist
C
mechanic
D
chemist
12) a person who specializes in the chemistry of rocks, minerals, and soil
A
oceanographer
B
mechanic
C
geochemist
D
zoologist
*select an answer for all questions
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