1. C HAPTER 1 R EVIEW

2. W HICH OF THE FOLLOWING IS NOT A TRUE STATEMENT ? A. Ozone is made up of three oxygen atoms. B. Ozone is created by interaction with chlorofluorocarbons. C. Ozone helps protect us from harmful ultraviolet radiation. D. The ozone layer is thinner than it was thirty years ago.

3. W HAT ARE THE 3 ELEMENTS THAT MAKE UP CHLORFLUOROCARBONS ? A. Carbon, oxygen and hydroden B. Chlorine, fluorine and oxygen C. Calcium, carbon and francium D. Chlorine, fluorine and carbon

4. W HICH OF THE FOLLOWING IS TRUE OF CHLOROFLUOROCARBONS ? A. They occur naturally in the environment. B. They are found mainly in the lowest area of the atmosphere. C. They are very stable. D. They are used in heating systems.

5. C HLOROFLUOROCARBONS WERE FIRST USED A. in refrigeration. B. to deplete ozone. C. to treat lung disease. D. as a sunscreen.

6. C HEMISTRY IS THE STUDY OF A. energy and atoms. B. scientific method and theories. C. matter and the changes it undergoes. D. physical changes in matter.

7. M ATTER IS ANYTHING THAT A. has mass and volume. B. has texture and shape. C. can be detected by your five senses. D. is in the environment.

8. T HE AMOUNT OF MATTER PRESENT IN AN OBJECT IS ITS A. weight. B. volume. C. density. D. mass.

9. W HICH OF THE FOLLOWING IS NOT MADE OF MATTER ? A. Air B. Water C. Magnetic field D. Glass

10. T HE MEASURE OF THE PULL OF GRAVITY ON AN OBJECT IS A. mass. B. density. C. weight. D. force.

11. W HERE WOULD YOUR MASS BE LESS THAN IT IS HERE ? A. On the moon. B. On Jupiter C. In Death Valley D. Nowhere

12. W HERE WOULD YOUR WEIGHT BE LESS THAN IT IS HERE ? A. At the beach B. Nowhere C. In Death Valley D. At the top of Mount Everest

13. T HE STUDY OF MATTER AS IT RELATES TO LIVING THINGS IS A. biochemistry. B. analytical chemistry. C. inorganic chemistry. D. physical chemistry.

14. O RGANIC CHEMISTRY FOCUSES ON MATTER THAT CONTAINS A. oxygen. B. living cells. C. carbon. D. nitrogen.

15. T HE BUILDING BLOCKS OF MATTER ARE A. supermacroscopic. B. macroscopic. C. microscopic. D. submicroscopic.

16. A SYSTEMATIC PROCESS SCIENTISTS USE TO STUDY A PROBLEM OR ANSWER A QUESTION IS A. theorizing. B. scientific method. C. experimentation. D. research.

17. A TENTATIVE, UNVERIFIED EXPLANATION FOR AN OBSERVATION IS A ( N ) A. hypothesis. B. experiment. C. theory. D. scientific method.

18. A N EXPLANATION OF A RELATIONSHIP IN NATURE THAT HAS BEEN VERIFIED MANY TIMES AND HAS NEVER BEEN REFUTED, IT IS A ( N ) A. hypothesis. B. scientific method. C. theory. D. scientific law.

19. I NFORMATION THAT IS EXPRESSED USING NUMBERS IS A. qualitative data. B. quantitative data. C. imprecise data. D. dependent data.

20. W HICH OF THE FOLLOWING IS AN EXAMPLE OF QUALITATIVE DATA ? A. 1.24 meters B. 42 seconds C. Rough texture D. 27 liters

21. I AM STUDYING THE EFFECTS OF THE AMOUNT OF FERTILIZER ON PLANT GROWTH. I ADD DIFFERENT AMOUNTS OF FERTILIZER TO SOME TOMATO PLANTS. W HICH IS THE INDEPENDENT VARIABLE ? A. Amount of water B. Amount of fertilizer C. Amount that the plant grows D. Type of plant

22. I AM STUDYING THE EFFECTS OF THE AMOUNT OF FERTILIZER ON PLANT GROWTH. I ADD DIFFERENT AMOUNTS OF FERTILIZER TO SOME TOMATO PLANTS. W HICH IS THE DEPENDENT VARIABLE ? A. Amount of water B. Amount of fertilizer C. Amount that the plant grows D. Type of plant

23. M ASS, VOLUME AND TEMPERATURE MEASUREMENTS ARE TYPICALLY A. qualitative. B. quantitative. C. dependent. D. independent.

24. A CONTROL IS A A. variable that changes during an experiment. B. standard for comparison. C. type of dependent variable. D. type of experiment.

25. A THEORY IS A ( N ) A. set of controlled observations. B. explanation supported by many experiments. C. tentative explanation of observations. D. law describing a relationship in nature.

26. A MODEL IS A. a visual, verbal and/or mathematical explanation of how things occur. B. an explanation that is supported by many experiments. C. a description of a relationship in nature. D. a tentative explanation about what has been observed.

27. A PPLIED RESEARCH IS A. undertaken to solve a problem. B. undertaken for the sake of gaining knowledge. C. obtained only from books. D. undertaken for monetary gain.

28. W HICH OF THE FOLLOWING IS AN EXAMPLE OF PURE RESEARCH ? A. Searching for a chemical that will improve refrigeration. B. Researching the cause of the hole in the ozone layer. C. Studying all reactions of fluorine. D. Studying the effect of a new drug on cancerous tumors.

29. W HICH OF THE FOLLOWING IS NOT REQUIRED BEFORE WORKING IN THE LAB ? A. Washing your hands B. Putting on a lab apron C. Reading your lab instructions D. Putting on safety glasses