(exam) rock cycle

Question 1

What forms igneous rocks

Answer 1

The cooling and solidification of magma

Question 2

What is the rock cycle

Answer 2

The process of how rocksbecome other types of rocksover huge periods of time.

Question 3

What forms sedimentary rocks

Answer 3

rock sediment compact and cement together

Question 3

What forms metamorphic rocks

Answer 3

Rocks changing due to intense heat and pressure

Question 4

weathering

Answer 4

Weathering is the wearing down of rocks into smaller pieces

Question 5

erosion

Answer 5

The transportation of rock sediment

Question 6

extrusive and intrusive is used to classify igneoeus rocks on:

Answer 6

texture

Question 7

extrusive:

Answer 7

Rocks that cool from lava on or above earth’s surface

Question 8

intrusive:

Answer 8

rocks that cool from magma deep underground

Question 9

features of intrusive rocks

Answer 9

coarse texture, large crystals visible to human eye,

Question 10

features of extrusive rocks

Answer 10

fine texture, made up of very fine crystals,

Question 11

heat and pressure forms

Answer 11

metamorphic

Question 12

Weathering and erosion forms

Answer 12

sediment

Question 13

Cooling of magma or lava forms

Answer 13

igneous

Question 14

Compaction and cementing forms

Answer 14

Sedimentary rocks

Question 15

What type of rock has coarse texture, large crystals visible to human eye, and forms from magma cooling deep underground

Answer 15

intrusive

Question 16

What type of rock has tiny crystals and a fine grained texture, and is formed from magma cooling above or on the surface

Answer 16

extrusive

Question 17

How do fossils prove continental drift

Answer 17

fossils of land animals and plants of the same age on different continents

Question 18

What is sea floor spreading

Answer 18

At a divergent plate, a volcano forms, the underwater volcanic eruptions create new igneous rock. When magma cools, new crust is formed. This new crust causes the seafloor to spread apart slowly

Question 19

magnetic striping

Answer 19

The earths magnetic field moves overtime, causing the north and south poles to drift slowly. Every few million years, they flip around. When they flip, while new rock is being produced during seafloor spreading, the magnetic minerals in the rock align to the poles.

Question 20

How does Sediment thickness prove continental drift

Answer 20

The further away from a plate boundary you are, the thicker the sediment is, because it is older rock.

Question 21

Regional metamorphism

Answer 21

regional: occurs over large area under crust due to extreme heat and pressure from movement of tectonic plates

Question 22

contact metamorphism

Answer 22

Contact: occurs over smaller scale mainly due to heat. Rock that comes into contact with magma underground undergoes metamorphism