Thursday, February 28, 2013

Hydrologic Cycle

Question: How much urine does a green launch lose by transpiration?
Hypothesis: if the passing of mass from a green install over period of time is measured, then(prenominal) the enjoin of transpiration can be pointd.
Evidence:
Change in mass due to the red ink of piddle by transpiration
initial mass of the comprise=8.81g
Time elapsed(min)Combined mass of deeds and apparatus(g) impart change in mass
0195.740
10195.720.02
20195.700.02
30195.680.02
40195.660.02
50195.640.02
Analysis and interpretation
1. The rate of transpiration was constant, because the plant is loses 0.02g of water every 10 minutes.

2 t fit 1.2 collusive the rate of transpiration
Total volume of water wooly(1g water =1mL)………………………………………0.1 mL
Total time elapsed…………………………………………………………………50min
Average rate of water loss…………………………………………………………0.002mL/min
Initial mass of plant………………………………………………………………..8.81g
Rate of water loss per gram of plant……………………………………………0.0002ml/min/g

Evaluation
1.The health of the plant is not ensured; -room temperature might speed up of low down the rate of water loss; the size of the plant, bigger the plant the to a greater extent amount of water is sacking to lose.
2.use a viewing or lid with a hole less water evaporation.

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-Type of light that the plant is under.
3. Yes, the hypothesis stated that we would be adapted to measure the rate of transpiration if we record the amount of water lost through the leaves over a specific time period. And we were able to measure the loss of the mass from a green plant over a period of time is measured; therefrom the rate of transpiration can be calculated; and it is 0.002 mL/min. With the measurements we recorded we were indeed able to measure the rate of transpiration. We took the amount of water lost over 50 minutes and we were able to calculate the rate.

Extension
1. Looking at the graph after 24hours the plant is going to lose 2.88L of water. (0.002ml/min x 24 x 60=2.88L)
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