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Twelfth Grade (Grade 12) Scientific Methods and Applications Questions

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Grade 12 Lab Practices and Tools
What is the main purpose of a microscope's illuminator?
  1. Holds the eyepiece
  2. Makes the microscope easy to carry
  3. Provides stability to the microscope
  4. Magnifies the sample
  5. Controls the amount of light reaching the specimen
  6. Provides a steady source of light
  7. Light is transmitted to the slide
  8. Provides a precise and clear image of the sample
Grade 12 Lab Practices and Tools
What do safety goggles protect?
  1. Your neck
  2. Your eyes
  3. Your forehead
  4. None of the above
Grade 12 Lab Practices and Tools
What piece of the microscope magnifies the sample of the object?
  1. Ocular lens
  2. Body tube
  3. Arm
  4. Base
  5. Illuminator
  6. Stage
  7. Turnet
  8. Aperture
Grade 12 Lab Practices and Tools
Grade 12 Scientific Method
What is a study that involves no researcher intervention called?
  1. experimental study
  2. noninvolvement study
  3. observational study
  4. quasi-experimental study
Grade 12 Scientific Method
What needs to be done to an observational study in order to make it an experiment?
  1. add subjects
  2. identify a variable
  3. randomly assign groups
  4. impose a treatment
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