Science Worksheet - Grade 8 Intermediate Level - The University Of The State Of New York - 2012 Page 4
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32Part I
1 The data table below shows apparent air temperature in degrees Fahrenheit (°F). Apparent air temperature
is how hot the air feels at different air temperatures and different relative humidities.
Apparent Air Temperature (°F)
Air
Relative Humidity
Temperature
(°F)
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100
95
99
104
110
120
132
144
95
90
93
96
101
107
114
124
136
90
85
87
90
93
96
100
106
113
122
85
80
82
84
86
88
90
93
97
102
108
80
75
77
78
79
81
82
85
86
88
91
75
70
72
73
74
75
76
77
78
79
80
70
65
66
67
68
69
70
70
71
71
72
If the air temperature is 90°F and the relative humidity is 70%, the apparent air temperature is
(1) 20°F
(3) 106°F
(2) 71°F
(4) 113°F
2 A student set up the experiment shown below to determine if radish seeds take in oxygen as they
germinate. Methylene blue is a chemical that is blue when oxygen is present, but is colorless when
oxygen is not present. Containers A and B each contained 200 mL of water and 10 drops of methylene
blue. Ten radish seeds were added to container A. Container B had no radish seeds.
Cap
Cap
200 mL water
200 mL water
with 10 drops
with 10 drops
methylene blue
methylene blue
10 radish seeds
No radish seeds
Container A
Container B
The purpose of container B in this experiment is to
(1) serve as the control container
(2) serve as the experimental container
(3) show that seeds do not give off oxygen
(4) show that seeds do not give off carbon dioxide
[4]
Grade 8 Science — June ’12
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