7/8 Grade Chapter 1 Review Question Preview (ID: 32213)
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A series of steps scientists follow to solve problems are
a) hypotheses
b) scientific methods
c) controlled experiments
d) variables
Possible explanations or answers to questions are
a) hypotheses
b) scientific methods
c) controlled experiments
d) variables
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) scientific methods
c) controlled experiment
d) variables
The one factor that differs between a control group and the experimental group in a controlled experiment is the
a) hypothesis
b) scientific method
c) controlled experiment
d) variable
Which of the following is a good way to analyze data?
a) organize it into charts and graphs, do calculations if necessary
b) check it over and copy it
c) put it away for a few months to see if it makes more sense later
d) try to find some way to make it support your hypothesis
What is a model?
a) a smaller version of the real thing
b) a nonworking copy
c) a possible substitute for a hypothesis
d) a representation of an object or system
What is a scientific theory?
a) the first idea to explain an observation or hypothesis
b) the best idea to explain an observation or hypothesis
c) an explanation that ties together many tested hypotheses and observtions
d) an explanation that ties together many questions and answers
What is a scientific law?
a) the final answer to a scientific question
b) a scientific statement of how something works, not why
c) an explanation of many experimental results and observations
d) an explanation of hypotheses, results, and observations
a person who studies volcanoes is called a
a) geochemist
b) volcanologist
c) zoologist
d) biologist
A person who studies the lives of animals is a
a) geochemist
b) zoologist
c) oceanographer
d) mechanic
a person who uses science to solve problems involving machines is called a
a) biologist
b) chemist
c) zoologist
d) mechanic
a person who specializes in the chemistry of rocks, minerals, and soil
a) geochemist
b) oceanographer
c) zoologist
d) mechanic
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