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7 Written questions

6 Multiple choice questions

  1. a principle that describes the behavior of a natural phenomenon
  2. factor in an experiment that can change if the independent variable is changed
  3. a series of problem-solving procedures that help scientists conduct experiments
  4. factor that is manipulated by the experimenter in an experiment
  5. blanket 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
  6. standard for comparison in an experiment

6 True/False questions

  1. hydrosphereblanket 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

          

  2. hypothesisall the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere

          

  3. environmental sciencestudy of the interactions of humans with environment

          

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

          

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

          

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