Rocks

Question 1

types of rocks

Answer 1

igneous

metamorphic

sedimentary

Question 2

formed and cooled magma that SOLIDIFIED through crystallization

classified by texture and mineral composition

size of solidified crystals dependent on rate of cooling of magma

Answer 2

igneous

Question 3

types of igneous rocks

Answer 3

intrusive and extrusive

Question 4

large crystals formed from slow cooling of magma below Earth’s surface (granite)

Answer 4

intrustive

Question 5

small crystals formed from quick cooling of magma at Earth’s surface (basalt)

Answer 5

extrusive

Question 6

formed from the lithification (compact) of sediment

Answer 6

sedimentary

Question 7

originate from solid particles from weathering and are transported (eg: shale and sandstone)

Answer 7

detrital sediment

Question 8

originate from soluble materials produced by chemical weathering (eg: limestone and chert)

Answer 8

chemical sediment

Question 9

formed from previous rocks that were subjected to extreme pressure and heat

Answer 9

metamorphic

Question 10

rocks are subjected to extreme pressure and heat

Answer 10

metamorphism

Question 11

effects of metamorphism

Answer 11

increased density

recrystallization (formation of larger crystals)

reorientation of mineral grains (foliation)

formation of new minerals