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Testable QuestionTestable Question: If Brassica Rapa plants are : If Brassica Rapa plants are grown in a microgravity environment, will it grown in a microgravity environment, will it affect the amount of fruit produced, the height of affect the amount of fruit produced, the height of the stems, the amount of leaves, the angle of the the stems, the amount of leaves, the angle of the stem, and the root hairs?stem, and the root hairs?
HypothesisHypothesis: The plants affected by the : The plants affected by the independent variable will have a greater amount independent variable will have a greater amount of fruit, the plants will be taller, the amount of of fruit, the plants will be taller, the amount of leaves will increase, the angle of the stem will leaves will increase, the angle of the stem will decrease, and increase the amount of root hairsdecrease, and increase the amount of root hairs
MicrogravityMicrogravityTravis HendershotJosh Denmeade
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Experiment Number 1Experiment Number 1
For this experiment:For this experiment:
Plants grew in a horizontal systemPlants grew in a horizontal system
Grown in Film CanGrown in Film Can
Grown for 6-7 daysGrown for 6-7 days
Dependent Variable(s):Dependent Variable(s):
Root Hairs (Amount)Root Hairs (Amount)
Direction of Root GrowthDirection of Root Growth
Microgravity
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Experiment Number 2For this experiment:For this experiment:
Plants grew in a vertical systemPlants grew in a vertical system
Plants grew in bottle growing Plants grew in bottle growing systemsystem
Plants grew for 37 daysPlants grew for 37 days
Dependent Variable(s)Dependent Variable(s)
Height, Angle of Stem, Amount of Height, Angle of Stem, Amount of fruit, Amount of Leavesfruit, Amount of Leaves
Microgravity
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The Height of Fast Plants in Microgravity
0
1
2
3
4
5
6
7
8
9
1 2 3 4 5 6
Weeks
He
igh
t in
cm
Microgravity
Control
This graph shows that the height of the plants in micro-gravityThis graph shows that the height of the plants in micro-gravity was shorter than that of the control plants. This means thewas shorter than that of the control plants. This means the plants did not grow as well in micro-gravity.plants did not grow as well in micro-gravity.
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The Variations of the Stem Angle of Fast Plants in Microgravity
0
10
20
30
40
50
60
70
80
1 2 3 4 5 6
Weeks
An
gle
in
de
gre
es
Microgravity
Control
This graph shows that the stem angles of the plants in micro-gravityThis graph shows that the stem angles of the plants in micro-gravity were less than the angles of the control plants. This was probablywere less than the angles of the control plants. This was probably due to disorientation of the plantdue to disorientation of the plant
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The Amount of Leaves on Fast Plants in Microgravity
0
1
2
3
4
5
6
7
8
1 2 3 4 5 6
Weeks
Am
ou
nt
of
lea
ve
s
Microgravity
Control
This graph shows that the amount of leaves of the plants This graph shows that the amount of leaves of the plants were relatively the same. This shows that despite the were relatively the same. This shows that despite the fact that some of the plants may have been impaired, fact that some of the plants may have been impaired, they still went through their life cycle.they still went through their life cycle.
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The Amount of Seeds of Fast Plants in Microgravity and Gravity
0
2
4
6
8
10
12
Microgravity Control
Type of Gravity
Am
ount
of
See
ds
Series1
This graph shows that the control was successfully going This graph shows that the control was successfully going through the process of reproduction while the microgravity’s through the process of reproduction while the microgravity’s did not.did not.
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Results-1stResults-1st Root hairsRoot hairs• grew to changing sense of gravity grew to changing sense of gravity
Direction of RootsDirection of Roots• grew to changing grew to changing sense of gravitysense of gravity
Control Microgravity
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Results-2ndResults-2ndHeightHeight
•didn’t grow as welldidn’t grow as wellLeavesLeaves
•able to go through able to go through lifecyclelifecycle
Angle of StemAngle of Stem•plants curved to gravityplants curved to gravity
Size of fruitSize of fruit
•wasn’t able to wasn’t able to reproduce as wellreproduce as well
Control
Microgravity
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ConclusionConclusion
Complete life cycleComplete life cycle
2nd generation may 2nd generation may not not developdevelop