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S.H.A.R.P. Quiz: Running the Experiment

1. What is the main reason that you have to add more water to the nutrient solution every couple of days?
A. Because the water evaporates from the solution	B. Because the algae metabolizes the water
C. Because the plants lose lots of water through transpiration	D. Just to keep the experiment fresh
2. Why should you pour some nutrient solution through the pots when you are refilling the solution?
A. To jolt the plant into a sudden growth spurt	B. To make up for having the plant out of solution for several minutes
C. To prime the felt for capillary action	D. To clean harmful bacteria out of the Perlite
3. What do you do when the plants get too big to fit in their pots?
A. Cut off some leaves with a pair of scissors or clippers	B. Pull out some of the plants
C. Transfer all the plants into a bigger pot	D. Just leave them there; they will still grow fine
4. Why can't you measure the roots of plants during a hydroponic experiment?
A. If you pull the roots out of the pot, the symbiotic bacteria living on them will be disrupted.	B. If you pull the roots out of the pot, they will spread more algae throughout the Perlite.
C. If you pull the roots out of the pot, the plant's growth will be stunted because of hormone action.	D. If you pull the roots out of the pot, they will break and the plant will die.
5. All of the following are appropriate ways to chart scientific conclusions EXCEPT:
A. a bar graph	B. a line graph
C. a data table	D. a pretty picture
6. A bar graph is best for showing
A. Progress through the experiment	B. Percentage of resources required for each pot in the experiment
C. Relationship between plant height and plant weight	D. Final results at the end of the experiment
7. A line graph is best for showing
A. Progress through the experiment	B. Percentage of resources required for each pot in the experiment
C. Weight of seeds at the beginning of the experiment	D. Results at the end of the experiment

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S.H.A.R.P. Quiz: Running the Experiment

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