A student obtained zinnia seeds from the same seed packet and 30 identical pots of the same size. The student placed 1 zinnia seed in each pot and covered it with the same type and amount of soil. The student then put 10 of the pots in a dark cupboard where no light could get in. She took another 10 pots and placed them by a windowsill where there was direct sunlight. Finally, she placed the last 10 pots in a storage room where there was a light source left on for 24 hours a day. Every day for a week, the same amount of water was added to each of the 30 pots in the three different locations. At the end of the week, the student made some observations and recorded the data in the table shown below. the Storage Room

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Zinnia Seeds
A student obtained zinnia seeds from the same seed packet and 30 identical pots of the same size. The
student placed 1 zinnia seed in each pot and covered it with the same type and amount of soil. The student
then put 10 of the pots in a dark cupboard where no light could get in. She took another 10 pots and placed
them by a windowsill where there was direct sunlight. Finally, she placed the last 10 pots in a storage room
where there was a light source left on for 24 hours a day. Every day for a week, the same amount of water
was added to each of the 30 pots in the three different locations. At the end of the week, the student made
some observations and recorded the data in the table shown below.
Pots in the Cupboard
(no light)
Height of
Seedling
(cm)
10
11
10
Colour of
Leaf
12
11
10
12
11
12
Height of
Seedling
(cm)
13
12
11
12
13
11
13
10
12.
en C1 Too
1. Use the information and data table above to answer the next question.
For this investigation, identify each of the following components:-
Yellow
Pale yellow
Yellow
Yellow
Pale yellow
Yellow
Yellow
Pots by the Windowsill
(direct sunlight)
Pale yellow
Pale yellow
a. a hypothesis (1 mark)
b. the independent variable (1 mark)
c. the dependent variables (1 mark)
d. the control group (1 mark)
Colour of
Leaf
e. the experimental group (1 mark)
f. the sample size (1 mark)
Pots in the Storage Room
(light for 24 hours/day)
Height of
Colour of
Leaf
Green
Green
Green
Green
Green
Green
Green
Green
Green
Seedling
(cm)
13
14
12
14
12
13
13
15
12
Green
Green
Green
Green
Green
Green
Green
Green
Green
Transcribed Image Text:blem Zinnia Seeds A student obtained zinnia seeds from the same seed packet and 30 identical pots of the same size. The student placed 1 zinnia seed in each pot and covered it with the same type and amount of soil. The student then put 10 of the pots in a dark cupboard where no light could get in. She took another 10 pots and placed them by a windowsill where there was direct sunlight. Finally, she placed the last 10 pots in a storage room where there was a light source left on for 24 hours a day. Every day for a week, the same amount of water was added to each of the 30 pots in the three different locations. At the end of the week, the student made some observations and recorded the data in the table shown below. Pots in the Cupboard (no light) Height of Seedling (cm) 10 11 10 Colour of Leaf 12 11 10 12 11 12 Height of Seedling (cm) 13 12 11 12 13 11 13 10 12. en C1 Too 1. Use the information and data table above to answer the next question. For this investigation, identify each of the following components:- Yellow Pale yellow Yellow Yellow Pale yellow Yellow Yellow Pots by the Windowsill (direct sunlight) Pale yellow Pale yellow a. a hypothesis (1 mark) b. the independent variable (1 mark) c. the dependent variables (1 mark) d. the control group (1 mark) Colour of Leaf e. the experimental group (1 mark) f. the sample size (1 mark) Pots in the Storage Room (light for 24 hours/day) Height of Colour of Leaf Green Green Green Green Green Green Green Green Green Seedling (cm) 13 14 12 14 12 13 13 15 12 Green Green Green Green Green Green Green Green Green
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