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7 Written questions

6 Multiple choice questions

  1. factor that is manipulated by the experimenter in an experiment
  2. study of Earth's oceans including the creatures that inhabit its waters, its physical and chemical properties, and the effects of human activities
  3. all the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere
  4. standard for comparison in an experiment
  5. a testable explanation of a situation
  6. an explanation based on many observations during repeated experiments; valid only if consistent with observations, can be used to make testable predictions, and is the simplest explanation; can be changed or modified with the discovery of new data

6 True/False questions

  1. scientific notationa method used by scientists to express a number as a value between 1 and 10 multiplied by a power of 10


  2. biospherethe part of Earth from its surface to its center


  3. Le System International d'Unites (SI)study of the interactions of humans with environment


  4. astronomystudy of objects beyond Earth's atmosphere


  5. geospherethe part of Earth from its surface to its center


  6. atmosphereblanket of gases surrounding Earth that contains about 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and water vapor


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