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S.H.A.R.P. Quiz: Experimental Design

1. What is a hypothesis?
A. An extinct turtle	B. A tentative explanation for a scientific phenomenon
C. The results that you get from an experiment	D. A thesis based upon deductive reasoning and hypothetical situations
2. What is a prediction?
A. What you think will happen in the experiment based on knowledge	B. An explanation of your future, as explained on page 12 of the Sunday paper under Libra or Virgo
C. A random guess	D. It's in the stars, Madame Zelda will tell you
3. What is the difference between the independent and dependent variables in an experiment?
A. The independent variable is quantitative and the dependent variable is not.	B. The independent variable is what is changed and the dependent variable is what is measured.
C. The independent variable has disowned his parents and the dependent variable still relies on them for food, shelter, and gas money.	D. The independent variable is graphed on the y-axis and the dependent is graphed on the x-axis.
4. Which CANNOT be a controlled variable?
A. Light exposure	B. Humidity
C. Temperature	D. Dependent variable
5. Why is a control necessary in a well done experiment?
A. To show what would normally happen and compare it with what happens when you change the independent variable.	B. To keep the experiment from from becoming chaotic.
C. So the experiment can be contained.	D. For graphing purposes only
6. A scientific experiment must have only one of which of the following variables?
A. Dependent variable	B. Independent variable
C. Controlled variable	D. Observed variable
7. "If iron is essential to radish growth, then bean plants without iron in their solution will die." This statement is which of the following?
A. A hypothesis	B. A question
C. A prediction	D. A procedure
8. We grew radishes in solutions with no magnesium, a normal concentration of magnesium, and double the normal concentration of magnesium. This is an example of
A. Level of treatment	B. Replication
C. Control group	D. Dependent variable
9. In our experiment, each tub of nutrient solution was feeding two pots, and each pot contained several plants. This is an example of
A. Level of treatment	B. Replication
C. Control group	D. Dependent variable
10. Which of the following questions cannot be answered scientifically?
A. What concentration of magnesium will make radish plants grow the highest?	B. What concentration of magnesium will make radishes that taste sweetest?
C. What concentration of magnesium will make radishes grow to the greatest weight?	D. What concentration of magnesium will make radishes that look prettiest?

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S.H.A.R.P. Quiz: Experimental Design

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