3 types of rocks

Question 1

Igneous

Answer 1

Forms when molten rock cools

Question 2

what types of igneous rocks are there

Answer 2

Extrusive and Intrusive

Question 3

what is extrusive

Answer 3

is when lava cools above the surface and cools quickly and forms small crystals

Question 4

what is intrusive

Answer 4

is when magma cools below the surface and cools slowy to form large crystals

Question 5

Metamorphic

Answer 5

is when a igneous or sedimentary rock experience high pressure or extreme heat, it takes million of years to form a metamorphic rock

Question 6

what are the type of metamorphic rock

Answer 6

contact and regional

Question 7

contact

Answer 7

occurs when hot magma comes in contact with rocks, the extreme heat causes it to transform into a new rock

Question 8

regional

Answer 8

occurs when rocks are burried under layers of sediments and exposed to extreme heat and a new rock is transformed due to the pressure of tectonic plates

Question 9

sedimentary

Answer 9

are formed when sediments are eroded or weathered

Question 10

what are the three types of sedimentary rock

Answer 10

chemical, organic and weathered

Question 11

what is the five steps of formation in sedimentary rock

Answer 11

weathering, erosion, deposition, compaction, cementation