Rocks Flashcards
1
Q
How are metamorphic rocks formed
A
When existing igneous or sedimentary rocks are put under extreme pressure and heat this also happens deep underground
2
Q
How are sedimentary rocks formed
A
Weathering causes the rocks to break up into small pieces and the rocks travel to a sea and fall in creating layers and all of these rocks are compacted together over time
3
Q
How and where are igneous rocks formed
A
Extrusive igneous rocks, also known as volcanic rocks, are formed at the crust’s surface as a result of the partial melting of rocks within the mantle and crust. Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth’s surface.
