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Flash Cards > Grade 9 Geography - Phisical Changes > Flashcards

Grade 9 Geography - Phisical Changes Flashcards

0
Q

What does MGC stand for?

A

Major Geographic Change

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1
Q

MGC?

A

A major geographic change that suddenly puts the whole earth out of balance and many of its systems in chaos that can be long lasting

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2
Q

What is MGC also known as?

A

The cause

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3
Q

What are the 4 result of MGC?

A
  1. A temporarily dead earth
  2. Mass extinction
  3. Collapse of systems
  4. Great temperature change
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4
Q

What are the five examples of MGC?

A
  1. Global freeze
  2. Super sun burst
  3. Astroid impact
  4. Super volcano eruption
  5. Technology
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5
Q

What does MGA stand for?

A

Major Geographic Adjustment

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6
Q

MGA?

A

A long lasting adjustment that a system(s) undergo to return the earth back to close to an equilibrium

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7
Q

What is MGA also known as?

A

Effect

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8
Q

What are the 7 examples of MGA

A
  1. Ice ages
  2. Change in sea level
  3. Major volcanic eruption
  4. Continental drifting
  5. Orbital change
  6. Magnetic reversal
  7. Sun spot
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9
Q

What are the 4 eons

A
  1. Hadean eon
  2. Archean eon
  3. Proterozoic eon
  4. Phanerozoic eon
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10
Q

What are the 3 eras?

A
  1. Paleozoic
  2. Mesozoic
  3. Cenozoic
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11
Q

Hadean eon?

A

4,550-4,000 mill

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12
Q

Archean eon?

A

4,000-2,500 mill

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13
Q

Proterozoic eon?

A

2,500-550 mill

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14
Q

Paleozoic era

A

550-250 mill

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15
Q

Mesozoic era?

A

250-65/65 mill

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16
Q

Cenozoic era?

A

+65/66 mill

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17
Q

Phanerozoic eon?

A

550-65/66 mill

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18
Q

Global freeze # 1

A

2,500 mill

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19
Q

Global freeze #2

A

550 mill

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20
Q

Super volcano eruption?

A

240-250 mill

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21
Q

Mexico asteroid?

A

65-66 mill

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22
Q

Physical Geographic change?

A

Influenced changes in systems and then changes in life

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23
Q

What is the result of the physical geographic changes

A

Extinction or adaption

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24
Q

What are the two first elements?

A
  1. Hydrogen

2. Heliem

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25
Q

A star that explodes is called a?

A

Supernova

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26
Q

How old is the universe?

A

13.7 bill

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27
Q

What was the earths original size?

A

1/10

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28
Q

What happened in the hadean eon?

A
  • many astroids
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29
Q

What happened in the archean eon?

A
  • atmosphere changes

- global freeze #1

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30
Q

What happened in the Proterozoic eon?

A
  • high oxygen atmosphere

- global freeze #2

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31
Q

What happened in the Phanerozoic eon?

A
  • 2x MGC

- many MGA

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33
Q

NED?

A

Near earth debris

34
Q

Eon?

A

A billion years

35
Q

Era?

A

A period of time that is associated with a particular quality, even or person

36
Q

What are the 5 main steps leading to earths creation?

A
  1. The Big Bang
  2. The formation of the first particle
  3. The forming of the first star
  4. The supernovas
  5. Debris merging
37
Q

What type of forces were released in the big bang?

A

Fundamental Forces

38
Q

What are the two first particles that were formed?

A
  1. Hydrogen

2. Helium

39
Q

When was the first start born?

A

13 billion years ago

40
Q

How many elements can be in a star?

A

2-26

41
Q

After the first supernova how many elements were created?

A

27-92

42
Q

What are the 3 things that supernova’s release?

A
  1. elements
  2. gas
  3. energy
43
Q

Supernova?

A

An exploding star

44
Q

What are the 2 things that merged debris create?

A
  1. stars

2. planets

45
Q

What is the present Universes Temperature?

A

-271.3 degrees

46
Q

What temperature is absolute zero?

A

-273.3 degrees

47
Q

How long approximately will it take for space to reach absolute zero?

A

10-12 billion years

48
Q

Lithosphere?

A

The rocky surface of earth (crust)

49
Q

Atmosphere?

A

The mixture gasses surrounding earth

50
Q

Hydrosphere?

A

water

51
Q

Biosphere?

A

The life that exists on earth

52
Q

In the Hadean Eon which 2 spheres were fully operational?

A
  1. Atmosphere

2. Hydrosphere

53
Q

In the Archean Eon which sphere formed ?

A

lithosphere

54
Q

What eon showed signs of life and what was it?

A

the Archean eon and it was the Cyna bacteria

55
Q

While the universe was forming what caused the planets to grow?

A

Collisions then merged debris

56
Q

What percentage does a hypothesis have to be, to be called a theory?

A

at least 98% accurate

57
Q

What colour was the early atmosphere? why?

A

orange, because of the immense amounts of carbon Dioxide

58
Q

Asteroid?

A

A large rocky body in space, in orbit around the sun

59
Q

Meteor?

A

Smaller rocks or particles orbiting the sun

60
Q

What are the 5 TIHS colours from least hazardous to most?

A
  1. White
  2. Green
  3. Yellow
  4. Orange
  5. Red
61
Q

What does TIHS stand for?

A

Torino Impact Hazard Scale

62
Q

What was the larges crater to hit earth?

A

the Vredeford crater

63
Q

Period?

A

A time in which a single type of rock system is formed. Multiple periods are comprised to an era

64
Q

Epoch?

A

A subdivision of an period

65
Q

How many landform regions are there in Canada?

A

7

66
Q

What are the 7 types of landforms in Canada?

A
  1. Canadian Shield
  2. Appalachians
  3. Interior Plains
  4. Great Lakes St. Lawrence Lowlands
  5. Hudson Bay/Arctic Lowlands
  6. Innuitian Mountains
  7. Western Cordillera
67
Q

Where is the Canadian Shield?

A

The Southern parts of Nauavut and southeastern parts of Northwest Territories, the northern parts of Saskatchewan and Manitoba, the southern parts of Ontario and all of Quebec and Labrador

68
Q

Where is the Appalachians?

A

The eastern areas of Canada, Newfoundland, Nova Scotia, New Brunswick and P.E.I

69
Q

Where is the Interior Plains?

A

The western part of Northwest Territories, all of Alberta, most of Saskatchewan, and the south western parts of Manitoba

70
Q

Where is the Great Lakes St. Lawrence lowlands?

A

Where the great lakes are south of Ontario

71
Q

Where is Hudson Bay/Arctic Lowlands?

A

The Northern parts of Ontario and northeastern parts of Manitoba, all of Hudson Bay and the Northern parts of Nunavut

72
Q

Where is the innuitian mountains?

A

The northeastern parts of Nunavut

73
Q

Where is the Western Cordillera?

A

All of B.C and Yukon

74
Q

What are the 3 types of rocks?

A
  1. igneous
  2. sedimentary
  3. metamorphic
75
Q

Which 3 regions have only Sedimentary rocks?

A
  1. Interior Plains
  2. Hudson Bay/Arctic Lowlands
  3. Great Lakes St. Lawrence Lowlands
76
Q

Physical Land form Region?

A

Areas that have a similar type of Land forms and rock characteristic throughout

77
Q

Which 2 regions have both igneous and sediment rocks?

A
  1. Western Cordillera

2. Appalachians

78
Q

Which region that have igneous and metamorphic rocks?

A

Canadian Shield

79
Q

Which region contains all three types of rock?

A

Innuitioan Mountain

80
Q

What is the main rock cycle?

A

Volcanic Activity to Igneous Rock to Sedimentary to Metamorphic rock to Volcanic Activity

Flash Cards (32 decks)

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