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Are you prepared? What is a volcano? A volcano is an opening, or hole, in the earths surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. 1. Large magma chamber 2. Bedrock 3. Conduit (pipe) 4. Base 5. Sill 6. Dike 7. Layers of ash emitted by the volcano 8. Flank 9. Layers of lava emitted by the volcano 10. Throat 11. Parasitic cone 12. Lava flow 13. Vent 14. Crater 15. Ash cloud Glossary What causes a Volcanic Eruption? All the Lava, Magma and gases build up to a point where there is no more room. So the Lava, Magma and gases try to find holes in the ground but when they find one they all rush to get there first and the Lava, Magma gets pushed up by all the gases and they make a Volcanic eruption. Glossary What to do before a volcanic eruption: 1. Find out if you live in a volcanic area and the hazards that could affect you . 2. If you live in an area that could experience a lava flow, make sure you know a quick route to safe ground . 3. Talk to your local Civil Defence Emergency Management Group about how they will warn you of a volcanic eruption . 4. Develop a Household Emergency Plan and prepare an Emergency Survival Kit so that you will cope with being on your own for three days or more. 5. You should also plan what you need in your Getaway Kit in case you need to evacuate. Before a Volcanic Eruption 1. The Volcano starts to smoke. 2. The ground starts to shake. 3. Lava pours out. Make your own Volcanic eruption Make your own Volcano Glossary Effects of a Volcanic eruption Effect of Volcanoes on people and the environment Volcanoes can have a very serious effect on the lands and people around them when they erupt. •Buildings are destroyed and people are made homeless. •People are killed. •Clouds of ash cover plants making them inedible. •Poisonous gases kill people and animals. •Dust causes pneumonia and illnesses to the survivors. •Dark skies, severe winds and heavy rains may follow an eruption for months afterwards. Glossary What you need to have in your get away kit: 1. In some emergencies, such as a flood or volcanic eruption, you will need to evacuate and take your Getaway Kit with you. Don't forget, you will also need to consider how you will care for your pets during an evacuation. Everyone in the house should have a Getaway Kit. This kit should include: 2. Essential items from your Emergency Survival Kit. 3. Family documents. 4. Birth and marriage certificates . 5. Drivers licenses and passports . 6. Financial information (insurance policies, mortgage information, etc). 7. Family photos. 8. Personal items . 9. Towels, soap, toothbrush, toothpaste, toilet paper. 10. Hearing aids, glasses, mobility aids for elderly or vulnerable members of your house. Volcano facts How many volcanoes are there in the world? 1. There are around 1510 'active' volcanoes in the world. We currently know of 80 or more which are under the oceans. What causes volcanoes to erupt? 1. The Earth's crust is made up of huge slabs called plates, which fit together like a jigsaw puzzle. These plates sometimes move. 2. Between the Earth's crust and the mantle is a substance called magna which is made of rock and gases. 3. When two plates collide, one section slides on top of the other, the one beneath is pushed down. Magma is squeezed up between two plates. How many volcanoes are there in the world? 1. There are around 1510 'active' volcanoes in the world. We currently know of 80 or more which are under the oceans. Did you know? • The name "volcano" comes from the name of Vulcan, a god of fire in Roman mythology. • Volcanoes are like giant safety valves that release the pressure that builds up inside the Earth. • The largest volcano (and mountain) in our Solar System is Olympus Mons on the planet Mars. The volcano is 17 miles (27 km) tall and over 320 miles (520 km) across. Movie time!! Who to contact when in a natural disaster: • Postal Address: 58 Kilmore Street PO Box 345 Christchurch 8015 Phone: (03) 366 2359 Fax: (03) 366 9960 Civil Defence Civil defence website Thanks for watching Made by: Michael Resources 1. 2. 3. 4. Books Internet http://en.wikipedia.org/wiki/Volcano http://volcanoes.usgs.gov/hazards/gas/in dex.php