Nature Of Science Question Preview (ID: 56373)
Middle School - What Is Science? Doing Science. Science And Technology.
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To make sure experimental results are valid, which of these procedures must be followed?
a) conduct multiple trials
b) pick two hypotheses
c) add bias
d) communicate uncertain results
Predictions about what will happen can be based on which of the following?
a) controls
b) technology
c) prior knowledge
d) number of trials
Which of the following is the greatest common concern for scientists using the Internet?
a) speed
b) availability
c) language
d) accuracy
In an experiment on bacteria, using different amounts of antibiotics is an example of which of the following?
a) control
b) hypothesis
c) bias
d) variable
Computers are used in science to do which of the following processes?
a) analyze data
b) make models
c) communicate with other scientists
d) all of the above
If you use a computer to make a three-dimensional picture of a building, it is an example of which of the following?
a) model
b) hypothesis
c) control
d) variable
When scientists make a prediction that can be tested, what skill is being used?
a) hypothesizing
b) inferring
c) taking measurements
d) making models
Which of the following is the first step towards finding a solution?
a) analyze data
b) draw a conclusion
c) identify the problem
d) test the hypothesis
Which of the following terms describes a variable that does not change in an experiment?
a) hypothesis
b) dependent
c) constant
d) independent
Carmen did an experiment to learn whether fish grew larger in cooler water. Once a week she weighed the fish and recorded the data. What could have improved her experiment?
a) setting up a control tank
b) weighing fish daily
c) using a larger tank
d) measuring the water temperature
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