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7525541
Volcanoes
Descrição
Mind map to support the study of junior cycle volcanoes
Sem etiquetas
volcano volcanoes junior cycle geography
physical geography
junior certificate
Mapa Mental por
Hazel Gannon
, atualizado more than 1 year ago
Mais
Menos
Criado por
Hazel Gannon
mais de 7 anos atrás
58
2
0
Resumo de Recurso
Volcanoes
Anotações:
This mind map supports the study of the earth's surface section of the syllabus and concentrates on volcanoes.
Key Words
Magma
Lava
Geyser
Vent
Crater
Ash
Debris
Types of Volcanoes
Active
Erupts regularly
Mount Etna
Extinct
Has not erupted for thousands of years
Slemish, Antrim
Dormant
Cotopaxi, Peru
Has not erupted in a long time
Formation of a Volcano
1. Magma reaches the earth's crust through a narrow vent
2. Pressure builds up in the vent
3. The volcano erupts, blasting lava, ash and mud into the air
4. This material collects around the vent and the cone shape forms
5. Repeated eruptions add to the cone shape mass
Positive Effects of Volcanoes
New land is created
Minerals created
Fertility of soil increases
Geysers formed
Dormant and extinct volcanoes are centres for tourism
Negative Effects of Volcanoes
Gases from volcanoes can be toxic
Volcanic eruptions can destroy towns and villages and cause death
Volcanic eruptions can generate tidal waves
Eruptions can trigger avalanches
Anexos de mídia
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a5100b14-c796-42ba-9e0d-880b901cdfa9 (image/jpg)
277c5258-f94e-4976-bb69-48154a8445e8 (image/jpg)
3c521eb6-261d-4d36-9d41-454a3a57d705 (image/jpg)
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