1 shu uk plants in space
Post on 12-Dec-2015
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Plants in Space
Meet the team!Adele – RESULTS MONITOR
T’Yana - TECHNICIAN
Meet the team!Evie – TEAM LEADER
Rosie – PUBLICITY MANAGER
What’s our idea?• We decided to focus on light
• Our Aim - to find out if the colour of the light would affect the growth of the plant.
Photosynthesis• Key theme of the project – plants photosynthesising to help the astronauts in space.
Why we focused on plant growth in different lights.• It interested us!
• Research told us that it would be an effective way to grow plants.
• We have previous knowledge of which lights plants absorb.
EQUIPMENT• Blue and red acetate.
• Cress seeds• Soil
• Plastic tubs• Seed trays• Lamp
• Pipettes
Did we succeed?• We did the experiment twice, to
double check our results.
•3 is the magic number.
(3 times is always best!)
• Control variable
Our results
Our results
Advancing our experiment
Test on different plants. Continue using blue light.
Control the control variable more tightly.
Some examples of what we would use…
Buckwheat
Kale
So how did we advance our investigation?
Same experiment
Same control variable
New independent variables
Light intensityWe used a smart phone app to monitor light intensity under all three boxes.
KALE
Colour of filter
Avera
ge n
um
ber
of
kale
gro
wn
1.24 lux 2.48 lux 1.17 lux
BUCKWHEATAvera
ge n
um
ber
of
buck
wheat
gro
wn
Colour of filter
1.24 lux 2.48 lux
1.17 lux
CRESSAvera
ge n
um
ber
of
cress
gro
wn
clear blue red0
5
10
15
20
25
30
35
40
Number of Cress Grown
1.24 lux 1.17 lux2.48 lux
Colour of filter
PROBLEMS WITH OUR RESULTS
• Plants left in different positions
• Buckwheat needed different conditions to grow
• Couldn’t get accurate readings with measurements
• Couldn’t control temperature
SO WE CHANGED OUR
EXPERIMENT AGAIN
!
• Just concentrated on Cress.
•Left the plants in the same positions with the same light intensity.
•Same number of seeds in each tray.
B a c k T o B a s i c s
clear blue red0
2
4
6
8
10
12
14
Colour of filter
Avera
ge n
um
ber
of
cress
gro
wn
Back To Basics
Bibliography • Controlling Plant Growth. BBC Bitesize. [online]
http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/living/controlplantgrowthrev1.shtml
• Red and Blue Light effects on plants. eHow. [online] http://www.ehow.com/info_7930505_red-blue-light-effects-plants.html
• Growing cress. GrowVeg.com [online] http://www.growveg.com/growblogpost.aspx?id=307
• The Truth About Kale. WebMD. [online] http://www.webmd.com/food-recipes/kale-nutrition-and-cooking
• 10 Health Benefits of Buckwheat. Care2. [online] http://www.care2.com/greenliving/10-health-benefits-of-buckwheat.html
Danke fürs Zuhören!(thank you for listening!)
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