WorksheetsCombustion and pollution
Total questions: 23
Worksheet time: 20mins
Name
Class
Date
1.
Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?
a)
Water
b)
Carbon Dioxide
c)
Dry Chemical
d)
Foam
2.
Which of these isn't in the fire triangle?
a)
Fuel
b)
Heat
c)
Oxygen
d)
Carbon dioxide
3.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
4.
Water is not used to control fires involving electrical appliances.
a)
False
b)
True
5.
8.7: Combustion is when a __________ reacts with oxygen
a)
petrol
b)
fuel
c)
fire triangle
d)
carbon dioxide
6.
What part of the fire triangle do you remove by spraying water onto a fire?
a)
Heat
b)
Oxygen
c)
Fuel
7.
What are the types of combustion?
a)
Complete & incomplete
b)
Incomplete & inexact
c)
Impossible & complete
d)
Computer & incompete
8.
Which one of the following is not a fossil fuel?
a)
Wood
b)
Coal
c)
Petroleum
d)
Natural Gas
9.
A compound that contains only carbon and hydrogen and that produces carbon dioxide and water when burned is called a(n)
a)
binary compound
b)
carbonate
c)
ionic compound
d)
hydrocarbon
10.
Is combustion a reversible reaction?
a)
Yes.
b)
No.
11.
Acid rain is a serious problem in some countries.
a)
True
b)
False
12.
Coal, oil and gas are examples of
a)
Shell Fuels
b)
Bone fuels
c)
Fossil fuels
d)
Sea fulels
13.
Acid rain can damage
a)
Drinking water sources
b)
Aquatic life
c)
Architecture/buildings
d)
All options are correct
14.
Which of the following is not a cause of acid rain?
a)
Volcanic Eruptions
b)
Burning of fossil fuels
c)
electric cars
d)
combustion engins
15.
What human activity is the primary source of acid rain?
a)
Cars
b)
deforestation
c)
coal powerplants
d)
volcanoes
16.
What is this tool?
a)
fire hydrant
b)
smoke detector
c)
fire alarm
d)
fire exstinguisher
17.
In any types of _________ mass is conserved.
a)
reaxion
b)
reaction
c)
reaxtion
d)
reaktion
18.
A reactant used at the beginning of a chemical reaction.
a)
reaktant
b)
reactant
c)
reactent
d)
reactint
19.
A substance obtained at the end of a chemical reaction.
a)
product
b)
prowduct
c)
prodduct
d)
proaduct
20.
chemical reaction that requires heat from the external environment.
a)
eandothermic
b)
endothermik
c)
endothermic
d)
endthermic
21.
Chemical reaction that produces heat.
a)
exothermic
b)
exophermic
c)
exthermic
d)
egsothermic
22.
Some greenhouse gases are naturally present in the Earth's atmosphere
a)
True
b)
False
23.
It was hot all week last week, Is this a sign of climate change?
a)
Yes
b)
No
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