Introduction to Life Science Chapter Test Introduction to Life Science

Name ____________________________ Date ____________________ Class ____________

Introduction to Life Science I Chapter Test

Introduction to Life Science

Multiple Choice

Write the letter of the correct answer on the line at the left.

____ 1. Life science is also known as a. botany. b. biology. c. medicine. d. hypothesis.

____ 2. A possible explanation for a set of observations or answer to a scientific question is a a. scientific law. b. hypothesis. c. manipulated variable. d. scientific theory.

____ 3. You are inferring when you a. pose a question. b. develop an imaginative way to solve a problem. c. explain or interpret the things you observe. d. draw a conclusion about a hypothesis.

____ 4. What is a statement that describes how to measure a particular variable or define a particular term? a. operational definition b. manipulated variable c. scientific literacy d. quantitative observation

____ 5. Skepticism is a. an attitude of doubt. b. always reporting results truthfully. c. proposing an explanation based on evidence. d. understanding basic scientific terms and principles.

____ 6. In an experiment, the one variable that is purposely changed to test a hypothesis is called the a. controlled variable. b. operational variable. c. manipulated variable. d. responding variable.

____ 7. A person who is trained to use both technological and scientific knowledge to solve practical problems is called a(n) a. marine biologist. b. engineer. c. life scientist. d. park ranger.

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Introduction to Life Science

Name ____________________________ Date ____________________ Class ____________

Introduction to Life Science I Chapter Test

____

8. A factor that can change in an experiment is called a

a. conclusion. b. variable. c. hypothesis. d. theory.

____

9. What are data?

a. graphs made from information in tables b. manipulated variables c. different fields of science d. the facts, figures, and other evidence gathered through observations

____

10. Preparing for a lab investigation should begin

a. five minutes before the lab. b. ten minutes before the lab. c. an hour before the lab. d. the day before the lab.

Completion Fill in the line to complete each statement.

11. A(n) ________________________ observation deals with a number, or amount. 12. ________________________ is how people change the world around them to meet

their needs and solve practical problems. 13. The process of grouping together items that are alike in some way is called

________________________. 14. An experiment in which only one variable is manipulated at a time is called a(n)

________________________ experiment. 15. ________________________ is a way of learning about the natural world.

True or False

If the statement is true, write true. If it is false, change the underlined word or words to make the statement true.

___________ ___________ ___________

___________

___________

16. A world globe is an example of a variable.

17. Making a forecast of what will happen in the future is predicting.

18. The factor that may change in response to the manipulated variable is called the controlled variable.

19. The sharing of ideas and experimental findings with others through writing and speaking is called communicating.

20. An inference describes how to measure a variable or define a term.

? Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.

Name ____________________________ Date ____________________ Class ____________

Introduction to Life Science I Chapter Test

Introduction to Life Science (continued)

Essay Answer each of the following on the lines provided.

21. Compare and contrast science and technology. _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

22. What does it mean for a hypothesis to be testable? _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

Using Science Skills: Interpreting Diagrams Use the diagram below to answer the following questions.

Pose questions

Communicate

Form a hypothesis

Draw conclusions

Design an experiment

Collect and interpret data

23. What does this diagram represent? _________________________________________________________________________

24. Explain why there are two lines from Collect and Interpret Data, one pointing to Draw Conclusions and another pointing to Pose Questions. _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

25. Why doesn't the diagram have an end? _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

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Introduction to Life Science

Name ____________________________ Date ____________________ Class ____________ Introduction to Life Science I Chapter Test Using Science Skills Answer the following questions in the spaces provided. 26. Comparing and Contrasting What is the difference between qualitative

observations and quantitative observations? _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 27. Applying Concepts Use an example to explain why technology can have both positive and negative consequences. _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ Essay Answer each of the following on a separate sheet of paper. 28. Why is honesty especially important in a scientist when the results of an experiment go against predictions? 29. Explain why using two manipulated variables in an experiment would not be wise. 30. Describe the safety precautions you should follow at the end of a lab experiment.

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