C1: Chemistry in our World

A selection of revision questions for Edexcel GCSE C1

List the gases released by volcanoes thought to form the early atmosphere
Carbon dioxide, water vapour, nitrogen, and small amounts of methane and ammonia.
1 of 14
What are the characteristics of sedimentary rocks?
a) Sedimentary rocks may contain fossils b) Sedimentary rocks are easily eroded
2 of 14
What type of rock is marble an example of?
Metamorphic rock
3 of 14
Name a mineral present in chalk, limestone, and marble.
Calcium carbonate (CaCo3)
4 of 14
Name one advantage of quarrying limestone.
Employment/raw materials for the construction industry
5 of 14
Name one disadvantage of quarrying limestone.
Pollution (noise or traffic fumes)/ damage to the local environment
6 of 14
Name three materials which include calcium carbonate.
Cement, glass and concrete
7 of 14
What substances are contained in cement?
Limestone and powdered clay
8 of 14
What substances are contained in concrete?
Cement, sand, gravel and water
9 of 14
What is the 'greenhouse effect?'
Natural greenhouse gases which trap heat from the sun, NOT The hole in the ozone layer
10 of 14
What is 'climate change' (global warming) and what is thought to cause it?
Rise in average mean temperature of the atmosphere. Caused by an increase of CO2 from human activity.
11 of 14
How can we reduce CO2 in the atmosphere?
a) use alternative fuels b) plant more trees c) iron seeding d) chemically convert carbon dioxide to hydrocarbons
12 of 14
Explain what biofuels are.
Any fuel obtained from dead organisms. They are renewable. They release C02 when burnt, but only what was initially taken in by the plant = Carbon neutral
13 of 14
Name a biofuel produced from sugar cane or beet. How is it made and how is it used?
Ethanol (bioethanol). It is produced by the fermentation of the sugars. It is used for fuel, mixed with petrol.
14 of 14

Other cards in this set

Card 2

Front

What are the characteristics of sedimentary rocks?

Back

a) Sedimentary rocks may contain fossils b) Sedimentary rocks are easily eroded

Card 3

Front

What type of rock is marble an example of?

Back

Preview of the front of card 3

Card 4

Front

Name a mineral present in chalk, limestone, and marble.

Back

Preview of the front of card 4

Card 5

Front

Name one advantage of quarrying limestone.

Back

Preview of the front of card 5
View more cards

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