Planet Earth 1-3

Question 1

Minarals

Answer 1

a naturally occurring Non-living crystalline material

Question 2

Crust

Answer 2

The outermost layer of earth

Question 3

Rock

Answer 3

Is made up of more than one mineral

Question 4

element

Answer 4

A pure substance

Question 5

Coumpound

Answer 5

Made up of two or more elements combined

Question 6

What is the Mohs Hardness scale?

Answer 6

It is a scale that shows how soft or hard a rock is

Question 7

7 properties that help identify minerals

Answer 7

1. what color of streak it leaves on povcelain tile
2. if breaks in a stright line its Cleavage if it breaks loose and bumpy it fracture.
3. if a mineral can bend or not
4. igneous rocks are formed by molten rocks (lava)
5. Metamorphic formed when rocks changed by heat and pressure
6. Sedementary with many rock fragments, seashells and chemicals are compressed together in layers and harden
7. if rocks or your finger nail can leave a scratch mark on other rocks

Question 8

In the Mohs hardness which rock is the hardest and softest?

Answer 8

Dimond is the hard’est talc is the soft’est

Question 9

Metamorphic

Answer 9

formed when other rocks are changed by heat, pressure and chemical reactions

Question 10

Igneous

Answer 10

formed by solidified molten rock (lava)

Question 11

Sedimentary

Answer 11

formed when combinations of rock, seashell ans chemical fragments compressed in layers and harden

Question 12

cementation

Answer 12

a process by which particals are held together by another material

Question 13

compaction

Answer 13

the process by which sedimentary rock is formed from sediments

Question 14

Soil profile

Answer 14

Is a view of the different layers that make up soil

Question 14

Topsoil

Answer 14

Is the top where soil which is often rich in hummus and nutrients

Question 15

Leaching

Answer 15

Is the removal of soil material dissolved in water

Question 16

Erosion

Answer 16

Is the movement of rock and mineral grains from one place to another

Question 17

Sediments

Answer 17

Comes from layers rock of rocks that have been broken down

Question 18

Weathering

Answer 18

Is your physical breakdown or disintegration of rocks

Question 19

Mechanical weathering

Answer 19

Is the physical break up or or disintegration of rocks for example gravity causes rocks to fall down cliffs and break apart

Question 20

Biological weathering

Answer 20

The physical or chemical breakdown of rocks caused by living that air plants animals bacteria example trees roots can cracked/break rocks

Question 21

Chemical weathering

Answer 21

then break-up or disintegration of rocks through the effects of chemical reaction upon them

Question 22

What are the four agents erosion?

Answer 22

Glaciers, gravity, wind and water are the for key agents of erosion

Question 23

Glaciers

Answer 23

Rub across mountain/watch it removes layers of it and also melted water gets in the cracks when it freezes again it makes cracks bigger

Question 24

Gravity

Answer 24

Pulls rocks down word and can cause landslides

Question 25

Wind

Answer 25

Can carry particles in it that rub against the rocks and smooth it out

Question 26

Water

Answer 26

Can smooth rock out break them down and even carry rocks which helps the process of breaking them down go faster

Question 27

Abrasion

Answer 27

Wearing down of rocks by wind ice waves and running water

Question 28

Striations

Answer 28

Scrape marks at indicate the pressure of a glacier

Question 29

Moraines

Answer 29

Eroded sentiments get pushed in front of glaciers and piled along its sides these are called Moraines

Question 30

Erratic

Answer 30

Large rocks that can be left behind many kilometres from their source

Question 31

How do you V-shaped valley's form?

Answer 31

Slower, incremental changes happen as streams and rivers carry rock fragments along in the water. The fragments rub against each other and the Riverbend as they bounce along they are gradually rounded and worn down. Rivers can cut straight into rocks to form canyons or gorge and Steep V-shaped valley's.

Question 32

Frank slide

Answer 32

Most disastrous Rockside in Canadian history was the Frank slide in 1903 at in Alberta crows nest pass. Over 80,000,000 tons of rock crash down the side of turtle Mountain bearing parts of the town of Frank. More than 70 people died in the disaster. The slider lasted less than 100 seconds. Scientist are studying the Frank slide using new technology and sound waves.

Question 33

Cleavage

Answer 33

When rocks break in straight lines

Question 34

Fracture

Answer 34

When I rock breaks in an uneven pattern and is rough along the sides

Question 35

In order to survive your body needs how many different elements found in minerals to survive?

Answer 35

Your body needs 20 or more different elements found in minerals iron and pirate help your body Carry oxygen calcium from Cal side and dolomite helps to regulate water in the body cells

Question 36

What is the relationship between the size of crystals and the length it took the form?

Answer 36

Longer the crystals talk to form the longer they are in size.

Question 37

How are intrusive rock formed?

Answer 37

Magma cools below the earth surface example granite

Question 38

How are extrusive rocks formed?

Answer 38

When lava cools above the earth surface example obsidian