Benchmark review 1

______ is a process that uses observation and investigation to gain knowledge about the regularities in nature.

• Graphing

• Science

• Measurement

• Hypothesis

How are a hypothesis and a theory similar?

• Theories and hypothesis are produced by experts

• They are about equally true

• They are attempts to explain natural phenomena

• A hypothesis and a theory cannot be revised

Which of the following is equivalent to 4.5 m?

• 450 km

• 450 cm

• 45 cm

• 0.45 km

What is the first step of scientific problem solving?

• Analyze your data

• Form a hypothesis

• Recognize the problem

Right after you recognize the problem it’s time to_____

• Observe and infer

• Draw a conclusion

• Perform an experiment

What is the point of doing an experiment?

• To recognize a problem

• To form a hypothesis

• To test a hypothesis

What are factors in an experiment that stay the same?

• Constants

• Variables

• Coordinates

What is an explanation supported by results from an experiment?

• A law

• A theory

• A hypothesis

What is a “control” in an experiment?

• A standard used for comparison

• A variable used for comparison

• A switch that turns on and off

What must a scientist do before he or she draws conclusions?

• Record and study the data collected

• Alter the data that has been collected

• Ignore all of the data collected