Yr 7 Science Test Geology

Question 1

Igneous rock turns into metamorphic through

Answer 1

Heat and pressure

Question 2

Metamorphic rock turns into sedimentary through

Answer 2

Weathering and erosion

Question 3

Sedimentary turns into igneous through

Answer 3

Remelting

Question 4

Igneous turns into sedimentary through

Answer 4

Weathering and erosion

Question 5

Sedimentary turns into metamorphic through

Answer 5

Heat and pressure

Question 6

Metamorphic turns into igneous through

Answer 6

Remelting

Question 7

The formation of igneous rocks

Answer 7

Igneous rock is formed through the cooling of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.

Question 8

extrusive and intrusive igneous rocks

Answer 8

An extrusive rock is a rock that is formed above the Earth’s surface through volcanoes, thus also being called volcanic rocks. An intrusive rock is a rock that is formed below the Earth surface by magma cooling underground. As a result intrusive rocks can be coarse grained. They are also called plutonic rocks.

Question 9

how cooling rate affects crystal size

Answer 9

If a molten rock cool rapidly, the crystals are smaller. If it cools slowly the crystals are larger.

Question 10

formation of sedimentary rocks

Answer 10

Sedimentary rocks are formed when sediment is deposited out of air,wind or water.This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

Question 11

the role of water in the formation of many sedimentary rocks

Answer 11

The water in fast moving rivers can carry weathered rock and erodes the rocks. These sediments are laid down then gradually form into sedimentary rock.

Question 12

the roles of heat and pressure in the formation of metamorphic rocks

Answer 12

Igneous and sedimentary are subjected to increased heat and pressure below the Earth’s surface. The Temperature increases by 25 degrees Celsius every kilometre below the surface. This heat and pressure causes metamorphism.

Question 13

the cyclic nature of the formation of igneous, sedimentary and metamorphic rocks

Answer 13

Aa

Question 14

the uses of igneous, sedimentary and metamorphic rocks, including as building materials.

Answer 14

A

Question 15

how layers of sedimentary and other rocks, together with fossils, reveal information about past
environments and life on Earth

Answer 15

A

Question 16

recall that all rocks are made of substances called minerals

- describe the physical properties of a variety of minerals

Answer 16

K