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WorksheetsFuels and Energy-Rev 1
Total questions: 10
Worksheet time: 5mins
_______________forms over millions of years from the remains of ancient organisms and then burned to release energy.
Sunlight
Fossil Fuel
Pollution
Wind
_____________are what fossil fuels are made of: carbon and hydrogen atoms.
Fossil Fuels
Water
Hydrocarbons
Decomposers
______________fossil fuel causes the most air pollution.
Oil
Coal
Natural Gas
Wood
Where are most oil deposits located?
Above ground in rocks
Above ground in trees
Underground in tiny holes of soil
Underground in tiny holes in sandstone and limestone
Like fuel the sun also provides heat and light. The process taking place in the sun is called
(a) Combustion
(b) Nuclear process
(c) Burning
(d) All of these
Burning of charcoal in a closed room will produce
(a)Carbon dioxide
(b)Nitrogen dioxide
(c)Carbon Monoxide
(d)All of these
When water is poured over burning wood, the fire goes off. This is because
(a) The temperature of water goes up
(b) The temperature of wood decrease
c) Molecules of water reacts with with oxygen present in the flame.
(d) The flame vaporizes.
The substances which have very low ignition temperature will
(a) Catch fire easily
(b) Will not catch fire
(c) Catch fire after some time
(d) None of these
Which one of the following is fuel of our body?
Petrol
Diesel
Water
Food
The least hot zone of a candle flame is
non-lumious zone
luminous
dark zone
blue zone at the base of the wick
