4 Maci C

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By Maci Cameron
How Long Can A Plant Live Without
Sunlight
 That is my big question
Ithink
the
plant
will
die
in
a
month
A. I thought that because plants need sunlight to live
without it the plant would die in a short period of
time.
Facts
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The sun one of the resources that every living thing needs to survive without it anything living will die in short periods of time.
From a NASA 2003 press release"… the Sun contains 99.86 percent of the mass of the entire solar system… The total energy radiated by the Sun averages 383 billion trillion
kilowatts, the equivalent of the energy generated by 100 billion tons of TNT exploding each and every second"
Source: http://www.sciencebuddies.org/science-fair-projects/project_ideas/Astro_p020.shtml
Sunlight - the green pigments in plant leaves, in a process called photosynthesis, to make sugars on which the pant then lives, use this. All animal life on the surface of Earth
eats plants to survive and therefore all life on earth (apart form some specialist examples) live on sunlight.
Source: http://wiki.answers.com/Q/What_do_plants_get_from_the_sun
Plants absorb sunlight through the chloroplasts in their leaves.
Source: http://wiki.answers.com/Q/Where_do_plants_get_sunlight
Plants need sunlight, because without it they would not be able to complete the process of photosynthesis
Source: http://wiki.answers.com/Q/Why_do_plants_need_sunlight
Deep-sea plants that live on the ocean floor have no sunlight, but plenty of water. They get their energy from minerals and nutrients in the water instead of from sunlight
Source; http://library.thinkquest.org/3608/plantsgrow.html
Plants need sunlight (or the right kind and amount of electric light) in order to make chlorophyll.
Source: http://www.reachoutmichigan.org/funexperiments/agesubject/lessons/sunlight.html#vocab
Experiment
 A. To do my project you need: Two plants, a place
without sunlight, and a notepad for observations .
 B. To do this project you take the two plants and take
the first one[the control plant] and put it in a spot with
sunlight. Take the second plant[the variable plant] and
put it in a cupboard. During the project take
observations until the plant dies.
 C. The control plant was the plant we treated normal
in the sunlight. The variable plant is the plant we put
in the cupboard with no sunlight.
Observations
 1. After one week the leaves were limp but healthy.
 2. After two weeks and a half the leaves were brittle but
still healthy .
 3. After three weeks the leaves were brittle and falling
off.
 4. After one month and two weeks the plant was dead
with brittle falling off leaves.
Data
Plant With Sun
 Did very well
Plant Without Sun
Very limp and died
very brittle colors
not vivid and leaves
shriveled
Analysis of Data
 Yes it did because after two weeks the plant without
any sunlight died.
Conclusion
 My conclusion is that my hypothesis was wrong and
the plant died in a month and two weeks instead of a
month.
References

Sources:
http://www.sciencebuddies.org/science-fairprojects/project_ideas/Astro_p020.shtml
http://wiki.answers.com/Q/What_do_plants_get_from_the_sun
http://wiki.answers.com/Q/Where_do_plants_get_sunlight
http://wiki.answers.com/Q/Why_do_plants_need_sunlight
http://library.thinkquest.org/3608/plantsgrow.html
http://www.reachoutmichigan.org/funexperiments/agesubject/lessons/sunlig
ht.html#vocab
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