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7 Written questions

6 Multiple choice questions

  1. standard for comparison in an experiment
  2. 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
  3. all the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere
  4. a principle that describes the behavior of a natural phenomenon
  5. factor in an experiment that can change if the independent variable is changed
  6. study of objects beyond Earth's atmosphere

6 True/False questions

  1. biosphereall of Earth's organisms and the environments in which they live

          

  2. 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

          

  3. geologythe study of the atmosphere, which is the air surrounding Earth

          

  4. scientific notationan 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

          

  5. independent variablefactor that is manipulated by the experimenter in an experiment

          

  6. scientific modela series of problem-solving procedures that help scientists conduct experiments

          

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