Physical Science - The Nature of Science Exam Questions & Answers.

Physical Science - The Nature of
Science Exam Questions & Answers.

Bias - CORRECT ANSWER Occurs when a scientist's expectations change how the results of an
experiment are viewed.



Constant - CORRECT ANSWER In an experiment, a variable that does not change.



Control - CORRECT ANSWER A standard used for comparison of test results in an experiment.



Density - CORRECT ANSWER Mass per unit volume of a material.



Experiment - CORRECT ANSWER An organized procedure for testing a hypothesis; tests the effect of one
thing on another under controlled conditions.



Hypothesis - CORRECT ANSWER A possible explanation for a problem using what is known and what is
observed.



Mass - CORRECT ANSWER The amount of matter in an object.



Matter - CORRECT ANSWER Anything that takes up space and has mass.



Model - CORRECT ANSWER Can be used to represent an idea, object, or event that is too big, too small,
too complex, or too dangerous to observe or test directly.



Scientific Law - CORRECT ANSWER A statement about what happens in nature that seems to be true all
the time: does not explain why or how something happens.