Changing Earth

Question 1

What are the 3 weathering?

Answer 1

The 3 weathering types are Biological weathering, Chemical weathering and Physical weathering

Question 2

What is the difference between weathering and erosion?

Answer 2

Weathering is the process of rocks being worked down by the weather while erosion is the process of moving small particles using wind and water.

Question 3

What are techniques used to identify a type of rock?

Answer 3

Hardness, Lustre, Transparency, Density, Composition, Size of the grain in rock

Question 4

What are fossils?

Answer 4

Fossils are remains (or imprints) of animal or plant preserved into a rock.

Question 5

What is the state of mercury

Answer 5

Liquid

Question 6

What are igneous rocks?

Answer 6

Igneous rocks are rocks formed by cooling magma.

Question 7

What do you get when you mix Iron with Carbon and nitrogen

Answer 7

Ferrycyanide

Question 8

What do you get if you mix Na with Cl?

Answer 8

Sodium chloride

Question 9

What are examples of the rock types??

Answer 9

Sedimentary: shale, gypsum, limestone, dolomite and sandstone
Metamorphic: slate, marble, Quartz, gneiss and anthracite
Igneous: pumice, granite, scoria, grabbro and obsidian

Question 10

What chemicals are in [Fe(CN)6]3

Answer 10

Iron, carbon, nitrogen

Question 11

What are the properties of metals

Answer 11

Conductive, Malleable, shiny.

Question 12

How does a metaphoric rock form?

Answer 12

Metamorphic rocks are formed when other types of rocks are changed by extreme heat and pressure inside the earth.

Question 13

How are sedimentary rocks formed?

Answer 13

They are formed when sediments ( loose particles ) are pressed together over a long period of time.

Question 14

What are the layers of the earth?

Answer 14

The Inner core, outer core, mantle and crust

Question 15

What are sedimentary rocks?

Answer 15

Sedimentary rocks are formed from sediments being compacted.

Question 16

What are the different types of weathering?

Answer 16

Chemical, biological and physical.

Question 17

How are sedimentary rocks formed?

Answer 17

Sediment rocks are formed when sediments ( rock particles,mud,sand or pebbles)are pressed together over a long period of time.

Question 18

What is the hardest mineral in the MOHs scale of hardness??

Answer 18

Diamond

Question 19

How are igneous rocks formed?

Answer 19

Igneous rocks are formed when a volcano erupts and lava comes out and it cools and becomes a solid.

Question 20

How are intrusive rocks formed?

Answer 20

Intrusive rocks are formed underground when magma gets trapped in small pockets. Over millions of years the magma cools underground to form the rocks.

Question 21

What are metamorphic rocks?

Answer 21

Metamorphic rocks are formed when other types of rocks are changed by extreme heat and pressure inside the Earth.

Question 22

What is softest mineral in MOHs scale of hardness?

Answer 22

Talc

Question 23

What is lustre?

Answer 23

Shining

Question 24

What is streak?

Answer 24

The colour of the crushed mineral.

Question 25

What is cleavage?

Answer 25

The number of smooth planes that minerals break along.

Question 26

What are the rock types?

Answer 26

Metamorphic,igneous and sedimentary

Question 27

What are the three rock types?

Answer 27

Igneous, sedimentary and Metamorphic.

Question 28

What is the thickest layer of the earth?

Answer 28

Mantle

Question 29

What is the thinnest layer of the earth?

Answer 29

Crust

Question 30

Define erosion:

Answer 30

The process of eroding or being eroded by wind, water or other natural agent.

Question 31

Define weathering:

Answer 31

To wear away or change the appearance or texture of something by long exposure to the atmosphere.

Question 32

What is the only liquid layer of the earth?

Answer 32

Outer core

Question 33

What is the outer layer of the earth?

Answer 33

Crust

Question 34

What is the inner layer of the earth?

Answer 34

Inner core