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NOOR ZANARRIYAH MOHAMAD GANI D20091034842SITI SHAHIDA MOHD AZIRID20091034836SARAH SABILLAH IBRAHIMD20091034820ZAINAB FASIHAH MUHAMAD SUKARDID20091034842
I need to cool down!
ENGAGEI Need To Cool Down
During a hot and sunny day, it seems that, sitting under a tree is much cooler compared to the surrounding that is exposed to sunlight. Why this phenomenon occur? Explain.
EMPOWERPlanning and Doing Your Experiment
Part 1 : Relative Humidity and Temperature
Data loggerData logger
Plastic bagPlastic bag
Humidity sensorHumidity sensor Temperature sensorTemperature sensor
Retort standRetort stand
ComputerComputer
EMPOWERPlanning and Doing Your Experiment
Part 1 : Relative Humidity and Temperature
Time(mm:ss) Temperature I/O-1(°C) Humidity I/O-2(%)
26:51:00 22.536 26.984
27:51:00 22.536 27.143
28:51:00 22.739 27.302
29:51:00 22.739 27.302
30:51:00 22.941 27.302
31:51:00 22.941 27.302
32:51:00 22.941 27.143
33:51:00 22.941 27.46
34:51:00 23.043 27.143
35:51:00 22.941 27.302
36:51:00 23.043 27.302
37:51:00 22.941 27.143
38:51:00 22.941 27.302
39:51:00 22.84 27.143
40:51:00 22.84 27.143
41:51:00 22.637 26.984
42:51:00 22.536 26.66743:51:00 22.333 26.825
44:51:00 22.333 26.984
45:51:00 22.434 27.143
46:51:00 22.434 26.984
47:51:00 22.434 27.143
48:51:00 22.637 27.143
49:51:00 22.637 27.143
50:51:00 22.434 26.984
51:51:00 22.536 26.984
52:51:00 22.536 27.143
53:51:00 22.536 27.143
54:51:00 22.434 26.984
55:51:00 22.434 27.143
56:51:00 22.434 26.984
57:51:00 22.333 27.143
58:51:00 22.434 26.984
59:51:00 22.231 26.825
EMPOWERResults
Relative Humidity and Temperature
Time interval : 1minTime interval : 1min
Time(mm:ss)26:51 16:49 06:47 56:45 46:43 36:41 26:39
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EMPOWERResults
Relative Humidity and Temperature
EMPOWERDiscussions
Relative Humidity and Temperature 1. What cause the plastic bag to turn cloudy at the end of the experiment?
2. Does the water content in plant influence transpiration rate?
3. What is the relationship between humidity and temperature in this
experiment?
4. Why we choose 1 minute as the time interval?
5. What will happen to the leaf when transpiration rate is on maximum?
6. What happen to the transpiration rate when there is high humidity?
7. What happen to the transpiration rate when there is high temperature?
ENHANCE
Why it is not advisable to water the plant during mid-day? Explain this phenomenon.