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5 Written questions

5 Matching questions

  1. How fast are wetlands disappearing
  2. Swamp
  3. pH
  4. homogeneous
  5. ethical concerns
  1. a type of wetland; Covered by water year round; Trees :Bald cypress, water tupelo often draped in Spanish moss. Animals: Crawfish, choupique, herons, ibises, egrets)
  2. b used to describe substances that look the same throughout. Homogeneous substances have one phase and uniform composition
  3. c A football field every 30-45 minutes
  4. d Tells how something is acidic or basic - organisms live in a narrow range of it
  5. e • One of the ethical issues was altering their lives to create a bomb that would kill so many people. They were never able to tell anyone anything and all they were doing to creating a top bomb to destroy so many people. Another is they were always exposed to radioactivity which even killed some people at times.

5 Multiple choice questions

  1. non-native species (they do not naturally live in the area) they were brought to Louisiana to be grown for fur. Some of them escaped and have overpopulated some areas. Because they are non-native, they have no natural enemies to control their numbers. They create a problem in the marsh because they eat the marsh grasses and dig up the roots. The roots keep the soil stable. When they are destroyed, the plant dies and the soil erodes away more easily.
  2. A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact
  3. waves of energy and particles that travel from one place to another.
  4. used to describe substances in which you can see more than one color or type of matter. Heterogeneous substances have more than one phase and a nonuniform composition.
  5. Ionic bonds will form between a metal (a positive ion) and a nonmetal (a negative ion.) Electrons are transferred—one gives up and one gains an electron.
    Covalent bonds will form between two non-metals (negative oxidation numbers.) Electrons are shared—neither atom will give up its electrons.

5 True/False questions

  1. Compounda substance microscopically dispersed evenly throughout another substance


  2. Examples of types of solutions areSalt and water
    Alcohal and water
    Copper culfate and water


  3. writing chemical formulasYou can use your drawings to determine how many atoms of each element will be in each formula. When writing the formulas for ionic bonds, the metal always comes first- It's easy to do this with something like C6H12O6 when each element is separate (balancing equations)


  4. Leslie GrovesA negatively charged particle that moves around the nucleus


  5. Non - Maleficenceavoiding the causation of harm; the harm should not be disproportionate to the benefit of the treatment


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