Rocks and Minerals

Question 1

Explain the difference between rock and mineral

Answer 1

A mineral is a naturally occurring substance with distinctive chemical and physical properties and rocks are usually made up of two or more minerals.

Question 2

Name 3 important minerals found in Western Australia

Answer 2

Gold, Nickel, Iron

Question 3

How is igneus rock formed

Answer 3

When hot molten rock crystallizes and solidifies.

Question 4

List 3 examples of igneus rock

Answer 4

Obsidian, Basalt and Granite

Question 5

Explain the difference between intrustive and extrusive igneus rock.

Answer 5

ntrusive igneus rock are formed inside a volcano or under the surface and carry many crystals because it cools slower while extrusive igneus rock cools on the outside and above ground and have fewer crystals because of the faster cooling rate due to outside pressure.

Question 6

Name 3 types of sedimentary rocks

Answer 6

Sandstone, Conglomerate and Limestone,