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Ninth Grade (Grade 9) Scientific Method Questions

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Grade 9 Scientific Method
Victoria grows the same bacteria in 20 petri dishes. She places 10 of the dishes in a container with a normal atmosphere. The remaining dishes she places in a container in which the oxygen level is double the normal level. She labels the first group "A" and the second group "B." Which statement best describes the groups?
  1. Group A is the control group; Group B is the experimental group.
  2. Group A is the experimental group; Group B is the control group.
  3. Group A is the hypothesis; Group B is the theory.
  4. Group A is the variable; Group B is the observation.
  5. Group A is the theoretical group; Group B is the hypothetical group.
Grade 9 Scientific Method
What is the first step in the scientific method?
  1. collect and analyze data
  2. conduct the experiment
  3. state the problem to be investigated
  4. draw a conclusion based upon the observations
Grade 9 Scientific Method
An investigator is interested in seeing how tall a certain species of plant will grow if it is kept under red light for a month. What would be valid hypothesis for this experiment?
  1. If the light is red, then the plant will grow.
  2. If the investigator uses pea plants, then there will be a lot of growth.
  3. If plants are grown under different colored lights, then they will grow different heights.
  4. If a month passes, then the plant will grow under the red light.
Grade 9 Scientific Method
In order for a phenomenon to be studied by science, it must be
  1. observable.
  2. measurable.
  3. repeatable.
  4. all of the above
Grade 9 Scientific Method
The factor in an experiment that is manipulated is the
  1. independent variable.
  2. constant.
  3. hypothesis.
  4. dependent variable.
Grade 9 Scientific Method
What is the second step of the scientific method?
  1. state the problem
  2. design the experiment
  3. record and analyze the data
  4. state the hypothesis
Grade 9 Scientific Method
The factor in an experiment that can change if other factors are changed is the
  1. independent variable.
  2. constant.
  3. hypothesis.
  4. dependent variable.
Grade 9 Scientific Method
What is the last step of the scientific method?
  1. conclusion
  2. hypothesis
  3. experiment
  4. data
Grade 9 Scientific Method
The purpose of a conclusion in the scientific method is to
  1. explain the reason for doing the investigation.
  2. state an expected outcome of the investigation.
  3. state whether the data supports the hypothesis.
  4. give sources of information to help the investigation.
Grade 9 Scientific Method
The                 variable is deliberately changed or determined by the experimenter.
  1. controlled
  2. dependent
  3. responsive
  4. independent
Grade 9 Scientific Method
A description of what you see, hear, taste, touch, and smell is a(n)                  .
  1. cycle
  2. scientific method
  3. observation
  4. experiment
Grade 9 Scientific Method
When referring to scientific activities, the best definition of the term observation is an act of
  1. stating an opinion about something.
  2. seeing something from a new point of view.
  3. paying attention to a custom or tradition.
  4. gathering information by paying attention to facts or occurrences.
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