The Nature of Science Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this book, as well as other interactive content, visit www.ck12.org CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide. Using an open-content, web-based collaborative model termed the FlexBook®, CK-12 intends to pioneer the generation and distribution of high-quality educational content that will serve both as core text as well as provide an adaptive environment for learning, powered through the FlexBook Platform®. Copyright © 2014 CK-12 Foundation, www.ck12.org The names “CK-12” and “CK12” and associated logos and the terms “FlexBook®” and “FlexBook Platform®” (collectively “CK-12 Marks”) are trademarks and service marks of CK-12 Foundation and are protected by federal, state, and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link http://www.ck12.org/saythanks (placed in a visible location) in addition to the following terms. Except as otherwise noted, all CK-12 Content (including CK-12 Curriculum Material) is made available to Users in accordance with the Creative Commons Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) License (http://creativecommons.org/ licenses/by-nc/3.0/), as amended and updated by Creative Commons from time to time (the “CC License”), which is incorporated herein by this reference. Complete terms can be found at http://www.ck12.org/terms. Printed: August 23, 2014 www.ck12.org C HAPTER Chapter 1. The Nature of Science 1 The Nature of Science Lesson Quiz Name___________________ Class______________ Date________ Multiple Choice Circle the letter of the correct choice. 1. A mathematical model is a(n) a. b. c. d. definition that explains how the earth works set of equations that represent natural processes physical representation of the subject being studied model that cannot be tested 2. If a hypothesis explains all the data, there is a whole lot of data, and none of the data contradicts the hypothesis, the hypothesis becomes a(n) a. b. c. d. law conclusion theory secondary hypothesis 3. If performing an experiment in the field, you should a. b. c. d. wear appropriate clothes bring enough food and water tell others where you are going all of the above 4. The lab instructor should be notified when a. b. c. d. anyone is hurt or anything is damaged you need an eraser to correct a mistake in your notebook you hear a joke and it made you laugh there is never a need to notify the lab instructor 5. The way scientists approach their work is called a. b. c. d. faith-based scientific method program management scientific notation 6. To support or refute a hypothesis, scientists must collect a. b. c. d. influence donations opinions data 7. When should you follow instructions in the lab? a. at the end of class 1 www.ck12.org b. always c. when the teacher is looking d. only when there is a fire 8. Which of the following best describe a hypothesis? a. b. c. d. A plausible explanation A questionable assumption A pretty good guess The closest match 9. Which of the following is not a scientific model? a. b. c. d. problematic conceptual mathematical physical 10. The goal of science is to a. b. c. d. disprove religious ideas find the absolute indisputable truth make tremendous inventions to advance humankind understand the natural world 11. An independent variable a. b. c. d. is the change that occurs because a measurement is not made precisely. inconsistent with the results from other experiments. is the factor that will be manipulated. is the result of the experiments. 12. Which of the following is not an assumption that scientists must make? a. b. c. d. Natural laws are the same everywhere and at any time. Scientific ideas are less likely to be shown to be wrong the more they have been tested. A scientific idea will be accepted if there is only a small amount of evidence that goes against it. Scientific ideas can change or be thrown out, as needed. True or False Write true if the statement is true or false if the statement is false. _______ 13. Always follow instructions in the lab _______ 14. Never eat or drink in the lab _______ 15. A scientific question does not need to be testable _______ 16. An dependent variable can be manipulated _______ 17. Science should not make moral judgments Fill in the Blanks Fill in the blank with the term that best completes the sentence. 18. A scientific question must be able to be proven wrong; that is it must be ____________. 19. A ____________ is a plausible answer to a question. 20. A ____________ model ties together many ideas in an attempt to explain a phenomenon. 21. A hypothesis that has been repeatedly tested that has no significant evidence against it is called a(n) ____________. 2 www.ck12.org Chapter 1. The Nature of Science 22. A touchable representation of an object, such as a globe, is a ____________. 23. F = G m1r2m2 is a ___________ of gravity. 24. In the experiment the ____________ were kept the same while the independent variable was tested. 25. The role of ____________ is to monitor scientific work. Short Answer Answer each question in the space provided. 26. List the steps involved in the scientific approach to solving a problem. 27. Why are student scientists sometimes told that they should try to disprove their hypotheses? 3
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