S3 Science: The Rock Cycle And Earth Resources (Paper 2 (intermediate))

S3 Science: The Rock Cycle and Earth Resources (Paper 2 (intermediate))

2026-11-14

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Tutor Prep Guide · the three rock types, magma cooling and crystal size, bedding and fossils, weathering against erosion, transport and deposition, metamorphism, soil formation, renewable and non-renewable resources, impacts of quarrying, the three Rs and site restoration

S3 Science: The Rock Cycle and Earth Resources (Paper 2 (intermediate))

This paper moves to applications: the cause of metamorphism, telling renewable from non-renewable resources, the order of the three Rs, soil formation and the impacts of quarrying, with calculations on output, recycling rates and cement use.

Direct answers　Metamorphic rock comes from heat and pressure without melting; fossil fuels are non-renewable; the three Rs run reduce, reuse, recycle; soil is weathered fragments plus humus; quarrying damages vegetation and brings dust and noise; output times years gives the total; a rate times the total gives the amount recycled; restoration returns the land to use.

01　Paper details (check answers afterwards)

Item	Detail
Questions	10
Suggested time	20
Difficulty mix	Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1
Chapter	Chapter: S3 Science: The Rock Cycle and Earth Resources
Level	S3

02　Questions (10 items)

FoundationHow does metamorphic rock form?
FoundationAre coal, oil and natural gas renewable or non-renewable?
FoundationWhat are the three Rs of resource use?
IntermediateWhat is soil mainly formed from?
IntermediateRock at a site weathers at 0.2 mm per year. How much weathering occurs in 50 years, in mm and in cm?
IntermediateWhat environmental impacts does open pit quarrying cause?
ChallengeA quarry produces 25000 tonnes of crushed rock a year. How much in 20 years?
ChallengeOf 1000 tonnes of waste, 65 percent can be recycled. How many tonnes is that?
ChallengeConcrete needs 300 kg of cement per cubic metre. How much cement is needed for 50 m³, in kg and in tonnes?
Error redoSomeone says recycling means resources can be used freely. What is wrong?

03　Answers and one-line notes

#	Answer	One-line note
1	Existing rock is changed by high temperature and pressure underground	Limestone heated and squeezed becomes marble, and the rock does not melt.
2	Non-renewable resources	They take millions of years to form and cannot be replaced on a human timescale once used.
3	Reduce, reuse and recycle	The order matters: cutting demand saves most, and recycling comes last.
4	Weathered rock fragments mixed with humus	The rock fragments supply minerals while humus comes from decomposed plant and animal remains.
5	10 mm, which is 1 cm	0.2 times 50 gives 10 mm, and 10 mm divided by 10 gives 1 cm.
6	Loss of vegetation and landform, plus dust and noise	Quarrying also leaves abandoned pits that must be dealt with by restoration work.
7	500000 tonnes	Multiplying 25000 by 20 gives 500000.
8	650 tonnes	Multiplying 1000 by 0.65 gives 650.
9	15000 kg, which is 15 tonnes	300 times 50 gives 15000 kg, and dividing by 1000 gives 15 tonnes.
10	Recycling only cuts part of the demand, and cutting use at the source works better	Recycling itself needs energy and processing, and not every material can be recycled.

04　What to do after marking

After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
Repeat the same item two days later; move to the next paper only when both attempts are correct.
Parents only need the answer and note columns; there is no need to explain every item.

For any rock question first ask how it formed: cooling gives igneous, layer upon layer gives sedimentary, and heat with pressure gives metamorphic; once fragments have moved away it is erosion and transport, not weathering.Tutor Registration →

Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.