Term 4

Question 1

Name all the spheres of earth

Answer 1

Biosphere
Lithosphere
Atmosphere
Hydrosphere

Question 2

Biosphere

Answer 2

Most animals and plants live and grow on the surface of the earth

Question 3

Atmosphere

Answer 3

Birds fly through the air and plants and animals depend on air from the atmosphere to live

Question 4

Hydrosphere

Answer 4

Living plants and animals need water
Some plants and animals live in water

Question 5

Lithosphere

Answer 5

Solid rock and soil

Question 6

What the 4 layers earth consists of

Answer 6

Earth’s crust and upper part of the mantle
Mantle
Outer core(semi-solid)
Inner core (solid and extremely hot)

Question 7

What does the lithosphere consist of

Answer 7

The earth’s crust and upper layer of the mantle

Question 8

What does soil consist of

Answer 8

A mixture of weathered rocks and minerals

Organic matter from plants and animal waste

Question 9

What are the 3 types of rocks

Answer 9

Igneous
Sedimentary
Metamorphic

Question 10

What is igneous rock with examples and its properties

Answer 10

Rock that forms when magma cools down quickly
Examples: Basalt and Granite
Properties :
Crystalline and it is very hard to break

Question 11

Sedimentary rocks

Answer 11

Rock that forms through sediment particles that are deposited by water,wind or ice. It is formed through compression

Properties
Found in layers and often contains fossils

Question 12

Metamorphic rocks

Answer 12

Rock that was igneous or sedimentary at first but was form due to intense heat or pressure

Properties
Crystalline and compressed structure

Question 13

Examples of igneous rock

Answer 13

Basalt
Granite

Question 14

Examples of sedimentary rock

Answer 14

Sandstone,mudstone and limestone

Question 15

Examples of metamorphic rocks

Answer 15

Marble and Slate

Question 16

Name the symbol and ore for gold

Answer 16

Au = element

Question 17

What is the symbol and ore for copper

Answer 17

Cu = copper pyrite

Question 18

Symbol and ore for tin

Answer 18

Sn= Cassiterite

Question 19

Symbol and ore for iron

Answer 19

Fe=magnetite or haematite

Question 20

Symbol and ore for Zinc

Answer 20

Zn= Zinc blends or sphalerite

Question 21

Symbol and ore for aluminium

Answer 21

Al=Bauxite

Question 22

What is a mineral

Answer 22

A natural solid with a definite chemical composition which occurs as crystals

Question 23

Ore

Answer 23

A rock with high concentrates of valuable minerals

Question 24

What are the 2 types of mining

Answer 24

Open cast mines and deep level mines

Question 25

What is the atmosphere

Answer 25

A layer of gases surrounding earth held in position by the earth’s gravitational force

Question 26

Troposphere temp and height and 1 fact

Answer 26

25 to -58 degrees Celsius
0-10km
Maintains life and weather systems and it is the densest

Question 27

Stratosphere temp and height and 1 fact

Answer 27

-58 to 0 degrees Celsius
10 to 50 km
It contains the ozone layer

Question 28

Mesosphere temp and height and 1 fact

Answer 28

0 to -95 degrees Celsius
50 to 80 km
It is the coldest part if the atmosphere

Question 29

Thermosphere temp and height and 1 fact

Answer 29

-95 to 1000 degrees Celsius
80 to 350 km

Question 30

Exosphere

Answer 30

This is in space over 350km and this is where the international space station is at approximately 370 km