  SCIENTIFIC METHOD/VARIABLES QUIZ

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A student was performing an experiment about the rate of photosynthesis in a certain type of algae when it is exposed to different colors of light. Write an if-then hypothesis about this experiment. Identify the independent variables and dependent variables.

1. Identify the hypothesis

2. Identify the independent variable

3. Identify the dependent variable

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. Write an if-then hypothesis about this experiment. Identify the independent variables and dependent variables.

4. Identify the hypothesis

5. Identify the independent variable

6. Identify the dependent variable

7. What is the acronym for remembering the 7 steps of the scientific method in order?

Tell whether the following is an example of a:
problem, hypothesis, conclusion, independent variable, or dependent variable.

8. Which brand of laundry detergent will clean your clothes better?

a.   problem    b.   hypothesis    c.   conclusion
d.   independent variable    e.   dependent variable
9. If I walk fast to school in the morning, ...
a.   problem    b.   hypothesis    c.   conclusion
d.   independent variable    e.   dependent variable

10. ... then I will sleep better at night.
a.   problem    b.   hypothesis    c.   conclusion
d.   independent variable    e.   dependent variable

11. If I take vitamins every morning, then I will have more energy.
a.   problem    b.   hypothesis    c.   conclusion
d.   independent variable    e.   dependent variable

12. ...then I will have more money in my pocket.
a.   problem    b.   hypothesis    c.   conclusion
d.   independent variable    e.   dependent variable

13. What is quick way to identify a problem?

14. What is quick way to identify a hypothesis?

15. What is quick way to identify a conclusion?

16. What is quick way to identify an independent variable?

17. What is quick way to identify a dependent variable?

18. What does D.R.Y M.I.X. stand for?

19. What is another name for the independent variable?

20. What is another name for the dependent variable?

21. Which variable is plotted on the x-axis of a graph?

22. Which variable is plotted on the y-axis of a graph?