Title: Science EOC Flashcards | Quizlet
Headings: Science EOC
Science EOC
STUDY
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Terms in this set (114)

Content: comparative
Investigations that never involve hypothesis
Descriptive
Name one benefit and one limitation of comparative investigations. Comparative investigations provide large amounts of information and use a wide range of variables. However, they may reveal relationships that do not always indicate cause and effect. Why are experimental investigations the best type of scientific investigation to demonstrate cause-and-effect relationships? Experimental investigations are the best type of scientific investigation to demonstrate cause-and-effect relationships because they allow the investigator to actively manipulate variables and control conditions. The independent variable can be isolated and manipulated, producing a change (or no change) in the dependent variable. This change can be measured to gather evidence to support or refute the cause-and-effect relationship. Experimental investigations also use a control group (a group that does not receive the factor being tested) for comparison. What is a main reason why the scientific model of atoms is considered a theory rather than a law? It has been changed over time.