Students might say that conservation biologists try to discover why a species has become endangered and develop strategies to safeguard the species. Hg (3/1) 8. neon (4/2) 9. actinides (8/3) 10. The poles of the magnetic field would be reversed. They all form salts with sodium and other alkali metals. Tracer elements are radioactive isotopes used in hospitals and clinics to diagnose diseases. 1,000 (5/2) 6. Vocabulary Review (page 43) 1. chemical property (1/1) 2. chemical change (4/2) 3. conservation of mass (3/2) 4. physical change (4/2) 5. density (1/1) 6. physical property (1/1) 7. boiling point (1/1) 8. behavior (1/1) 9. volume (1/1) 10. melting point (1/1) 11. state (2/1) 12. appearance (1/1) Part B. 3. Copper (4/2) 11. representative elements (3/1) 12. t� gdF� gd=n gd1t 7$ 8$ H$ gd1t � � � � � � � � � ) * 2 D L _ g y � � � � � � � � � � � � � � � � � � " - 0 ������ź�������������������������z�q������� h1t 5�CJ aJ hg h1t 5�CJ aJ h5 CJ OJ QJ ^J aJ hg hF� 5�CJ aJ hg h Biomechanical engineers use their knowledge of mechanical devices and machines to repair or replace defective body parts. The sugar is soluble in water. Elements can gain the stable atomic structure of a noble gas by either gaining or losing electrons. How long is its tail? 6. Milky Way 8. spiral 9. astronomical units Key Terms (page 134) 1. rotation 2. revolution 3. eclipse 4. astronomical unit 5. solar system 6. constellations 7. light-year 8. orbit 9. supernova 10. comet 11. meteorites Chapter Review Part A. Reach a conclusion. Sample questions: a. The McGraw-Hill Companies The force of gravity on a bug can be less than the water�s surface tension. It is easy to miss an action-reaction pair when one object is much more massive than another. 8/3 11. The experiment was designed to test whether the pillbugs were more attracted to cornstarch, and if so would they move towards the chamber containing the cornstarch. T 5. Vocabulary Review (page 61) 1. d (4/1) 12. k (5/2) 2. g (1/1) 13. e (5/2) 3. l (3/1) 14. h (6/2) 4. a (3/1) 15. chemistry (4/1) 5. f (3/1) 16. atoms (4/1) 6. c (3/1) 17. anode (1/1) 7. i (5/2) 18. cathode (1/1) 8. b (5/2) 19. sphere (3/1) 9. n (5/2) 20. random (5/2) 10. m (5/2) 21. tracer elements (7/2) 11. j (5/2) Part B. Living things take in and use energy. The liquid water exerts a buoyant force that holds up the floating ice cubes. 4. acidic 5. Earth 4. North and south (or south and north); the filings between the poles of the two magnets are attracted, so the poles must be unlike poles. The atom shown is more like Rutherford�s than like Thomson�s. It is a reaction that releases energy. He showed that a sealed flask of boiled broth developed no tiny organisms. Concept Review (page 98) 1. alloy (4/1) 2. true (3/1) 3. true (7/2) 4. solubility (8/2) 5. true (4/1) 6. high (7/2) 7. true (3/1, 5/2) 8. increases (4/1) 9. volume (7/2) 10. true (9/3) 11. does not (9/3) 12. cannot (6/2) 13. red (11/3) 14. acid-base (12/3) 15. true (11/3) Reinforcement Section 1 (page 99) 1. false; The world around you contains many types of matter. 5. MORE THAN 19,000 downloadable images and animations illustrating key topics . False. E H R U ] ` g j { ~ � � � � � � � � � � � � � � � � % , 1 2 3 E F I Q T ` ��������������¶�������������|qe����� hg h6n| 5�CJ aJ hg h1t CJ aJ h6n| 6�CJ OJ QJ ]�^J aJ h1t 6�CJ OJ QJ ]�^J aJ hg hF� 5�CJ aJ hg h5 5�CJ aJ hg h Kelvin 8. kilogram 9. meter 10. line graph 11. estimation; vertical word: measurement Chapter Review Part A. b. Excess solute is dissolved in a hot solution. P Scientists would have difficulty sharing information. Irregular galaxies come in all different kinds of shapes and are usually smaller than the other galaxies. (1, 3/1) 18. Darwin 3. mutations 4. punctuated equilibrium 5. does 6. are not 7. differences 8. can 9. were 10. A scientist works to learn more scientific information and an engineer tries to apply scientific information to solve a problem or human need. They indicate the number of atoms of a particular element that are in a particular molecule. � Connect Virtual Labs is a fully online lab solution that can be used as an online lab replacement, preparation, supplement or make-up lab to bridge the gap between lab and lecture. Directed Reading for Content Mastery Overview (page 57) 1. nucleus 2. electron cloud 3. protons 4. neutrons 5. electrons 6. positive 7. negative 8. electrons 9. mass number 10. alpha 11. �! 50% (7/3) 9. a. gram (5/2) b. cubic meter (5/2) c. kilometer (5/2) d. Kelvin (5/2) e. micrometer (5/2) f. milliliters/second (5/2) 10. a. drawing (6/3) b. photograph (6/3) c. movie (6/3) 11. Scientists and engineers review the physical and chemical properties of materials to determine their usefulness. How can you tell?Do you a pill bug or a sowbug?How can you tell The field gets weaker as you move farther from the magnet until it is unable to be detected. Fossils give proof of preexisting, simpler life forms and their environment. 7 2. 2. o � � ! The amount of most nongaseous solutes that can dissolve in liquid solvents rises with temperature. Set two pieces of filter paper in the choice chambers. (2/2) 11. A magnetic pole always attracts unlike poles. All of the books offered here are classic, well-written literature, easy to find and simple to read.
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