Question

scientific hypotheses, theories, and laws reading comprehension questions compare and contrast 13. compare and contrast hypotheses, theories, and laws in the venn diagram below. multiple choice 14. which of the following is not true of theories? a. concise b. can be revised c. supported by empirical evidence 15. if a scientific phenomenon is summarized in a concise mathematical or empirical statement, it is most likely a... a. hypothesis b. theory c. law 16. if a goldfish is fed a higher protein diet, it will grow faster than a fish fed a low protein diet. this is an example of a... a. hypothesis b. theory c. law 17. theories are educated guesses or predictions related to natural phenomenon. a. true b. false 18. which type of variable is manipulated in an experiment? a. independent variable b. dependent variable c. controlled variable 19. tangible evidence that can be objectively examined and tested is called... a. predictive data b. empirical data c. superficial data 20. which of the following is not true of laws? a. is universally applicable b. has predictive power c. explains the mechanisms behind a phenomenon 21. the \how\ and \why\ a phenomenon occurs can be explained by a.... a. hypothesis b. theory c. law

Explanation:

1. Theories are comprehensive and supported by empirical evidence and can be revised. They are not just concise statements.
2. A concise mathematical or empirical statement summarizing a scientific phenomenon is a law.
3. A statement like "If a goldfish is fed a higher - protein diet, it will grow faster" is a hypothesis as it is a proposed explanation to be tested.
4. Theories are well - supported explanations, not just educated guesses or predictions. So the statement is false.
5. In an experiment, the independent variable is the one that is manipulated.
6. Tangible evidence that can be objectively examined and tested is empirical data.
7. Laws describe what happens, not why or how (which is the role of theories). They are universally applicable and have predictive power.
8. The "how" and "why" of a phenomenon are explained by a theory.

Answer:

1. a. concise
2. c. law
3. a. hypothesis
4. b. false
5. a. independent variable
6. b. empirical data
7. c. explains the mechanisms behind a phenomenon
8. b. theory