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WorksheetsFORM 1 CHAPTER 7 AIR
Total questions: 16
Worksheet time: 8mins
Gas P is
Oxygen
Nitrogen
Carbon dioxide
Inert gas
Gas Q is
Oxygen
Carbon dioxide
Nitrogen
Inert gas
Gas R is
Oxygen
Nitrogen
Carbon dioxide
Inert gas
Gas S is
Oxygen
Inert gas
Carbon dioxide
Nitrogen
importance of gas P
Help to produce nitric acid and ammonia
Photosynthesis
Respiration
Fire extinguisher
What will happen if percentage of S increase ?
Temperature increases
Thinning of ozone layer
Why air is considered a mixture ?
Each gas has no color, so cannot be differentiate
Each gas still shows its original properties when separated.
The gas is used to fill up light bulbs
Helium
Neon
Argon
Carbon cycle maintain this gas in the air
Nitrogen
Carbon monoxide
Carbon dioxide
A layer that surrounds the Earth
Atmosphere
Cloud
Sky
The gas is needed in combustion
Carbon dioxide
Oxygen
Hidrogen
What is environmental problem shown?
Covid 19
Haze
Greenhouse effect
Two effect of the problems from the picture
Causes breathing difficulties and cough
Can cause lung cancer
The visibility distance is limited/ shorter.
Can cause greenhouse effect
The road accident rate increase when this happen. Why?
Causes breathing difficulties and cough
The visibility distance is limited / shorter.
Why oxygen level decrease in cave?
decay of organisms ike dead bats in the cave
the space in cave is very small
respiration of bats or other animals inside the cave
What advantage of people use torch instead of torchlight?
It is brighter
To know the presence of oxygen
