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The Earth and its history
Quick questions on The rock cycle: how weathering, lithification, melting and metamorphism link the three rock families - Eduqas GCSE Geology
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the three rock families?Show answer
Every rock belongs to one of three families, defined by how it forms:
What is the processes that link them?Show answer
The families are connected by a set of processes, each of which converts one kind of material into another:
What is reading the cycle?Show answer
The cycle has no fixed start, but a typical loop runs like this. An igneous rock is uplifted and weathered; the fragments are eroded, transported and deposited, then lithified into a sedimentary rock. Deep burial with heat and pressure turns it into a metamorphic rock. Further heating melts it to magma, which crystallises back into an igneous rock.
What are the two energy sources?Show answer
The cycle is driven by two energy sources, one at the surface and one at depth:
What is q1?Show answer
Name the process that turns loose sediment into solid sedimentary rock. [1 mark]
What is q2?Show answer
Explain why uplift is an important part of the rock cycle. [2 marks]
What is q3?Show answer
State which energy source drives weathering and erosion. [1 mark]
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