Earth CyclesEarth Cycles

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Question 1Question 1

The rise in the temperature of the Earth The rise in the temperature of the Earth due to carbon dioxide and other due to carbon dioxide and other greenhouse gases.greenhouse gases.

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Question 2Question 2

The study of the movement of large The study of the movement of large pieces of the Earth’s crust.pieces of the Earth’s crust.

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Question 3Question 3

The % of nitrogen in the current The % of nitrogen in the current atmosphere.atmosphere.

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Question 4Question 4

The reaction between soluble ions The reaction between soluble ions leading to insoluble substances. These leading to insoluble substances. These may fall to the ocean floor and slowly may fall to the ocean floor and slowly form sedimentary rocks.form sedimentary rocks.

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Question 5Question 5

Type of rock formed when molten rock Type of rock formed when molten rock cools.cools.

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Question 6Question 6

The % of carbon dioxide in the current The % of carbon dioxide in the current atmosphere.atmosphere.

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Question 7Question 7

One of the four gases making the early One of the four gases making the early atmosphere. Once oxygen was present atmosphere. Once oxygen was present it was turned into carbon dioxide and it was turned into carbon dioxide and water.water.

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Question 8Question 8

Layers of rock that have cracked so that Layers of rock that have cracked so that they are broken and no longer in they are broken and no longer in alignment.alignment.

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Question 9Question 9

Type of rock formed when the material Type of rock formed when the material in pre-existing rocks recrystallizes under in pre-existing rocks recrystallizes under high temperature and/or pressurehigh temperature and/or pressure..

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Question 10Question 10

Fine-grained igneous rock with small Fine-grained igneous rock with small crystals formed when lava cools quickly crystals formed when lava cools quickly on the Earth’s surface. Basalt is an on the Earth’s surface. Basalt is an example.example.

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Question 11Question 11

One of the four gases making the early One of the four gases making the early atmosphere. It disappeared as nitrifying atmosphere. It disappeared as nitrifying bacteria evolved on Earth.bacteria evolved on Earth.

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Question 12Question 12

Layers of rock that have been pushed Layers of rock that have been pushed together.together.

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Question 13Question 13

A type of igneous rock with large A type of igneous rock with large crystals formed when magma cools crystals formed when magma cools slowly beneath the Earth’s surface. slowly beneath the Earth’s surface. Granite is an example.Granite is an example.

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Question 14Question 14

One of the four gases making the early One of the four gases making the early atmosphere. Large amounts atmosphere. Large amounts disappeared as plant life evolved on disappeared as plant life evolved on Earth.Earth.

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Question 15Question 15

Formed from the condensation of water Formed from the condensation of water vapour from the early atmosphere as vapour from the early atmosphere as the Earth cooled.the Earth cooled.

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Question 1Question 1

The rise in the temperature of the Earth The rise in the temperature of the Earth due to carbon dioxide and other due to carbon dioxide and other greenhouse gases.greenhouse gases.

AnswerAnswer Global warming Global warming

Question 2Question 2

The study of the movement of large The study of the movement of large pieces of the Earth’s crust.pieces of the Earth’s crust.

AnswerAnswer Plate tectonics Plate tectonics

Question 3Question 3

The % of nitrogen in the current The % of nitrogen in the current atmosphere.atmosphere.

AnswerAnswer 79% 79%

Question 4Question 4

The reaction between soluble ions The reaction between soluble ions leading to insoluble substances. These leading to insoluble substances. These may fall to the ocean floor and slowly may fall to the ocean floor and slowly form sedimentary rocks.form sedimentary rocks.

AnswerAnswer Precipitation Precipitation

Question 5Question 5

Type of rock formed when molten rock Type of rock formed when molten rock cools.cools.

AnswerAnswer Igneous Igneous

Question 6Question 6

The % of carbon dioxide in the current The % of carbon dioxide in the current atmosphere.atmosphere.

AnswerAnswer 0.036% 0.036%

Question 7Question 7

One of the four gases making the early One of the four gases making the early atmosphere. Once oxygen was present atmosphere. Once oxygen was present it was turned into carbon dioxide and it was turned into carbon dioxide and water.water.

AnswerAnswer Methane Methane

Question 8Question 8

Layers of rock that have cracked so that Layers of rock that have cracked so that they are broken and no longer in they are broken and no longer in alignment.alignment.

AnswerAnswer Fault Fault

Question 9Question 9

Type of rock formed when the material Type of rock formed when the material in pre-existing rocks recrystallizes under in pre-existing rocks recrystallizes under high temperature and/or pressurehigh temperature and/or pressure..

AnswerAnswer Metamorphic Metamorphic

Question 10Question 10

Fine-grained igneous rock with small Fine-grained igneous rock with small crystals formed when lava cools quickly crystals formed when lava cools quickly on the Earth’s surface. Basalt is an on the Earth’s surface. Basalt is an example.example.

AnswerAnswer Extrusive Extrusive

Question 11Question 11

One of the four gases making the early One of the four gases making the early atmosphere. It disappeared as nitrifying atmosphere. It disappeared as nitrifying bacteria evolved on Earth.bacteria evolved on Earth.

AnswerAnswer Ammonia Ammonia

Question 12Question 12

Layers of rock that have been pushed Layers of rock that have been pushed together.together.

AnswerAnswer FoldFold

Question 13Question 13

A type of igneous rock with large A type of igneous rock with large crystals formed when magma cools crystals formed when magma cools slowly beneath the Earth’s surface. slowly beneath the Earth’s surface. Granite is an example.Granite is an example.

AnswerAnswer Intrusive Intrusive

Question 14Question 14

One of the four gases making the early One of the four gases making the early atmosphere. Large amounts atmosphere. Large amounts disappeared as plant life evolved on disappeared as plant life evolved on Earth.Earth.

AnswerAnswer Carbon dioxideCarbon dioxide

Question 15Question 15

Formed from the condensation of water Formed from the condensation of water vapour from the early atmosphere as vapour from the early atmosphere as the Earth cooled.the Earth cooled.

AnswerAnswer Oceans Oceans

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