Rock Cycle Flashcards
How is Sedimentary rock formed?
By smaller bits of rock deposited by rivers.
How is Igneous rock formed?
When hot molten rock cools down.
How is Metaphorphic rock formed?
A mixture of rock under extreme temperature and pressure.
What does Sedimentary rock look like?
Layers with the older ones at the bottom.
What does Igneous rock look like?
Random interlocking crystals.
What does Metamorphic rock look like?
It has layers.
What is a fact about Sedimentary rock?
You can find fossils in them like chalk or limestone.
What is a fact about Igneous rock?
It’s very hard to break.
What is a fact about Metamorphic rock?
It will be tough and hard wearing for example slate.
Rocks get weathered by chemical…
…and physical weathering.
Small fragments (pieces) of rock get transported away…
…are deposited at the bottom of the river.
When the river slows down, the sediments…
…are deposited and form rock.
Over many years, these sediments.
…build up to form layers.
The layers of sediment gradually get squashed…
…and eventually form sedimentary rock.
Some sedimentary rocks get heated and…
…compressed under the Earth’s surface.
