B.)DEPENDENT VARIABLE:
THE LENGTH AND Breadth are dependent variables, as they both depend on the area of the plant,whether exposed to bright sunlight or not.
C.)CONTROLLED VARIABLE:
We controlled that both the branch had come from the same type of plant(same species), while measuring plants from shaded areas for example, we controlled that all leaves are taken from the same tree and same branch,another factor we tried to control would be that both plants (one from shaded area and one exposed to bright sunlight)are taken from the same size of tree(not one young and one old tree.)
METHOD: (CONTROLING VARIABLE)
1.)APPARTUS:
RULER
LEAVES FROM WILD CHERY PLANT(2 BRANCHES-FROM PLANT EXPOSED TO BRIGHT SUNLIGHT, AND PLANTS FROM SHADED AREA.)
2.)PROCEDURE:
- Collect branches from 2 wild cherry plants,one from a bright area ,and one which is shaded, while selecting the 2 plant samples should keep in mind that they are about the same size, not one old and one young plant(controlled variables.)
- Take a sample of 30 leaves from the branch of the bright area.(the sample has to be done randomly(some small leaves and some larger ones as well),take different sizes of leaves(length and width.)but from the same branch/tree.
- Then measure and record the length and width in millimeters using a ruler of each leaf from the bright area.
- Then calculate and record the surface area of each of these leaves by multiplying its length by its width and dividing the product by two.
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REPEAT THE 2ND,3RD,4TH PROCESSES FOR THE BRANCH FROM THE WILD CHERY PLANT IN A SHADED AREA.
- After that , compare both the findings/data of surface area-from the bright area and shaded area.
- 2.DATA COLLECTION AND PROCESSING:
1.QUANTITATIVE RAW DATA:
TABLE 1. PLANTS EXPOSED TO BRIGHT AREA:---
TABLE 2,PLANTS EXPOSED TO SHADED AREA:
2.AND 3)PROCESSED DATA AND PRESENTATION OF PROCESSED DATA:
TABLE 3-AVERAGE(MEAN) OF BOTH TABLES:
THERE MAY BE SOME ERRORS WHILE MEASURING LENGTH OR BREADTH(SO +/- 2 MM). AS ALL ARE APPROXIMATE VALUES
3.CONCLUSION AND EVALUATION:
I.) INTERPRETATION OF DATA:-
Comparing the height,width ,and surface area of both the samples in the table, we can see a trend that plants growing in an area of bright light has is wider, taller, and has a higher surface area, but we have make a more in-depth study of this , by using the mean of each (looking at the second table) we see that even the mean height(85.9mm) ,width(32.7667mm) and thus surface area(1461.583mm) of the plant in a bright area is more in contrast to those growing in a shaded area/not exposed to much sunlight(mean length-65.3667)(mean width-28.8)(mean surface area-1052.583mm),making my prediction/hypothesis to be true about this experiment.
II.)EVALUATES WEAKNESSES AND LIMITATIONS:
AGE OF PLANTS(SAMPLES) MAY VARY, WHICH MAY BE A FACTOR AFECTING THE HEIGHT ,LENGTH ,ETC.AS BOTH SAMPLES MAY BE IN A DIFFERENT GROWTH PERIOD(AGE.)
WE HAD ONLY SELECTED 2 SAMPLES(BRANCHES),SO THESE TWO SAMPLES MAY NOT GIVE A WHOLE PICTURE TO COMPARE HOW THE LIGHT INTENSITY AFFECTS ITS GROWTH.
WE HAD ONLY SELECTED 1 SPECIES.-WILD CHERRY PLANT, AND THIS RESULT MAY VARY WITH DIFFERENT SPECIES OF PLANTS.
III.)SUGGEST REALISTIC IMPROVEMENTS:
NEXT TIME MAKE SURE THAT WE SELECT BOTH SAMPLES FROM THE SAME AGE GROUP/STAGE OF GROWTH.
WE SHOULD ALSO COMPARE OUR RESULT WITH USING SOME OTHER SPECIES,NOT ONLY USING A WILD CHERRY PLANT
INCLUDE MORE SAMPLES AS WELL,NOT ONLY 2 ,ONE FROM BRIGHT LIGHT, AND ONE FROM SHADED AREA , WE SHOULD TAKE ATLEAST 2 FROM EACH ,SO 60 LEAVES FROM BRIGHT AREA, AND 60 FROM SHADED AREA.
