Kowloon Tong School (Secondary Section)
F. 2 Integrated Science
First Term Pre-Examination Test 1
Multiple Choice Questions
1. A
|
2. D
|
3. C
|
4. C
|
5. D
|
6. B
|
7. C
|
8. C
|
9. B
|
10. C
|
Fill in the Blanks
1. Noble
gases
2. (a) chemical
(b) heat
(c) light (Any order)
3. (a) photosynthesis
(b) light
4. (a) carbon dioxide
(b) greenhouse
effect
5. (a) Breathing
(b) gaseous
exchange
Short Question
(a) Heat energy is released in burning. When the
burning French fries is place below the
boiling tube, water in the boiling tube absorbs
heat, causing the rise in temperature of
the water.
(b) Jason should compare the increase in water
temperature per gram of French fries
used. The greater the increase in water
temperature per gram of snack used, the
higher the energy content of French fries.
(c) Jason should weight the piece of French fries
before heating it on a Bunsen burner.
(d) (i) Extensive clearance of forest decreases the
absorption of carbon dioxide in the
atmosphere.
(ii) Extensive burning of fuels increases the amount of carbon
dioxide released to
the atmosphere.
(iii) These human activities increase amounts of carbon dioxide in
the atmosphere.
This leads to an excessive
greenhouse effect and hence global warming.
(iv) There may be more cases of extreme weather conditions.
The melting of ice in the
polar region may speed up, leading to flooding in
low-lying areas. (or other
reasonable answers)
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