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WorksheetsY8 Combustion Formative
Total questions: 20
Worksheet time: 15mins
Which one of the following is not a fossil fuel?
Wood
Coal
Petrol
Natural Gas
Why do we burn a fuel?
To have fun
To release energy
To lose energy
To produce carbon dioxide
What do we use limewater to test for?
Carbon Dioxide
Water
Heat
Smoke
If a flame is giving off smoke, this type of combustion is occurring...
Complete combustion
Incomplete combustion
What is NOT product of complete combustion?
carbon dioxide
water
carbon monoxide
water
Incomplete combustion is harmful to humans because it ___________________.
increases the level of sugar in the blood
produces large amounts of carbon dioxide
decreases the amount of sugar in the blood
produces carbon monoxide that reduces the level of oxygen in the blood
Hydrocarbon fuel + oxygen ----> ___+____
(Select 2)
CO2
O2
H2O
CxHy
C2H4 + 2 O2 -->
8.7: Combustion is when a __________ reacts with oxygen
petrol
fuel
fire triangle
carbon dioxide
Which is true of air pollution and human health?
Years of research link air pollution to lung diseases, birth defects, and cancer
Air pollution is commonly listed as a cause of death.
None of the health effects of air pollution are reversible.
Healthy adults are most affected by air pollution.
Carbon monoxide is released from...
human body
plants
vehicles
styrofoam
What results from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills?
Carbon Dioxide
Methane
Water Vapor
Fluorinated Gases
Nitrous Oxide
