Three seedlings of the same tree species were located along the side of a hill and measured. The results of those measurements are shown in the graph below.
Select the best answer to each of the following questions:
1. Over what period of time did the experiment last?
- five days
- five weeks
- five months
- cannot be determined
2. The graph indicates that
- all three plants were measured at the same time
- all three plants were measured at different times
- all three plants were measured five times
- all three plants should have been measured more often
3. The dependent variable on the graph is
- height of the plant
- age of the plant
- plant growth
- measurement #
4. At the last measurement, the height of plant #1 was
- 80 centimeters
- 20 centimeters
10 centimeters
- 20 millimeters
5. Which plant probably received the most sunlight during the measurement period?
- all three plants received the same amount
- plant 1
- plant 2
- plant 3
6. It is now known that some of the measurements were not taken at the same time. Which of the following is more likely?
- plant 1 was measured first
- plants 1 and 2 were measured at the same time
- plant 3 was measured over the longest period of time
- plant 3 was measured first
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