Extreme Earth|Year 6|Geography
Cause and Impact | |
Cause of a VOLCANO: Positioned on the edges of tectonic plates. Pressure forms and pushes magma up through the surface | |
Impact of a VOLCANO: Destruction of wildlife and homes/buildings. Gas and Ash can impact on breathing. High death toll around populated regions. Over years the soil can become nutrient rich for crops. | |
Cause of a TSUNAMI: Tectonic plates slip/grind together causing an earthquake underwater. The shock creates a powerful wave. Death toll. | |
Impact of a TSUNAMI: Destruction of wildlife and buildings. High death toll around populated regions. (2004 example -) | |
Cause of an EARTHQUAKE: Tectonic plates slip/grind together causing the earth to shake. | |
Impact of an EARTHQUAKE Destruction of wildlife and buildings. High Death Toll | |
Cause of a DROUGHT: Change of wind patterns OR man made by destruction of trees and building dams OR a long period of hot weather | |
Impact of a DROUGHT: Environmental forest fires. Crops and animals die. Lack of water for humans to drink. High death toll |
Key Diagram and labels |
Key words | |
Climate | Climate it the long term pattern of weather in a particular area. |
Tectonic plates | · segments of the Earth’s crust that move in relation to one another which can cause earthquakes or volcanic eruptions. |
Active volcano | an active volcano is one that has erupted recently, and there is the possibility that it may erupt again. |
Dormant volcano | a dormant volcano is one that has not erupted for a long time, however, it may still erupt in the future. |
Extinct Volcano | · an extinct volcano is one which hasn’t erupted in at least 10,000 years, and that scientists don’t think will erupt again for a very long time. |