Earth Science

Question 1

Minerals

Answer 1

A mineral is a naturally occurring chemical compound.

Question 2

Magma

Answer 2

hot fluid material below or under the Earth’s crust.

Question 3

Lithosphere

Answer 3

The rigid part of the Earth.

Question 4

Sediments

Answer 4

Matter that falls to the bottom of a liquid.

Question 5

Lava

Answer 5

Liquid that flows on Earth’s crust.

Question 6

Igneous

Answer 6

Also known as volcanic rocks, are formed on the Earth’s crust.

Question 7

Extrusive

Answer 7

A rock that extruded at the earth’s surface as lava or other volcanic deposits.

Question 8

Abrasive

Answer 8

Rough and course.

Question 9

Scoria

Answer 9

Basaltic lava fragments ejected from a volcano.

Question 10

Pumice

Answer 10

A very light volcanic rock that solidifies rapidly above the Earth’s crust.

Question 11

Basalt

Answer 11

A dark, fine grained volcanic rock.

Question 12

Obsidian

Answer 12

A hard, dark, glass like volcanic rock formed by rapid solidification above the crust.

Question 13

Granite

Answer 13

Granite is a common type of intrusive igneous rock.

Question 14

Batholiths

Answer 14

A very large igneous intrusion.

Question 15

Lustre

Answer 15

Lustre is the way light is reflected off a crystal, rock or mineral.

Question 16

Moh’s Scale

Answer 16

The Moh’s Scale is the scale ranking the hardness and the scratch resistance of a mineral.

Question 17

Streak

Answer 17

A mark of a different substance or colour.

Question 18

Sedimentary Rocks

Answer 18

Sedimentary rocks are formed over a long period of time from particles of sediments.

Question 19

Sandstone

Answer 19

Formed by the cementing together of grains of sand.

Question 20

Shale

Answer 20

Shale is formed by the silt and clay size mineral that is called mud.

Question 21

Conglomerate

Answer 21

Conglomerate is a combination of many different rocks that are formed and cemented to each other.

Question 22

Mudstone

Answer 22

Mudstone is a fine-grained sedimentary rock whose original form were clay or mud.

Question 23

Siltstone

Answer 23

Siltstone is a sedimentary rock which has a grain size in the silt range. It is also smother than sandstone,and coarser then claystones.

Question 24

Coal

Answer 24

Coal is an organic rock that is formed by fossils over a very long period of time.

Question 25

Limestone

Answer 25

Limestone is a sedimentary rock which is mostly comprised of skeletal remains of marine animals

Question 26

Rocksalt

Answer 26

A salt as a solid form

Question 27

Mineral ore

Answer 27

A mineral ore is any mineral the has a sufficient amount of the value element or compound that it can be mined.

Question 28

Mining

Answer 28

Mining is where they dig in search for precious and useful minerals or rocks in the Earth's crust

Question 29

Environmental

Answer 29

Environment is where all the animals and plant live, they need this to survive and so do we.