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Title: Volcanoes 1 Volcanoes • By Maria Ventura 2 What are volcanoes? • A volcano is a landform where magma erupts through the surface of the planet. 3 How are volcanoes formed? • A volcano forms when hot molten rock (called magma while it is still underground) erupts at the surface. On the surface of the Earth, molten rock is called lava. The lava will build up around the vent where it comes out, forming a volcano. 4 What Do Volcanoes Sound Like?

Volcanoes are often cone-shaped, but they can take other shapes too. Where do volcanoes happen? Most volcanoes are formed on land, but there are some volcanoes that. My PowerPoint on Volcanoes'. Written By Ethan Cassar. What is a Volcano?.A volcano is a opening in the earths crust through which molten lava, ash and gases are.

5 Types of Volcanoes Volcanoes are grouped based on their shape. There are five volcano shapes. 6 Composite Volcanoes • Composite, or Strato, volcanoes are formed by layers of rock and lava. • They erupt in explosive ways!

• Most composite volcanoes are snow-capped and appear to be extinct. They are not all extinct! 7 Shield Volcanoes • Shield volcanoes are huge in size.

• They are built by layers of lava. • When they erupt, lava spills out of vents, forming a cone shape. 8 Cinder Volcanoes • Cinder volcanoes are very steep and are cone shaped. • They are very tall and are the most common form of volcanoes in the world. 9 Spatter Volcanoes • Spatter volcanoes are dangerous because they are very explosive. • The lava does not erupt in a slow flow, but explosively in particles.

10 Complex Volcanoes • Most volcanoes can be called complex. • A complex volcano is one that has two or more vents to release lava. 11 Famous Volcanoes • Mt. Saint Helens, Washington • Mt. Telecharger Jer 2 Beta Francais.

Vesuvius, Italy • Mt. Fuji, Japan • Mt.

Krakatau, Indonesia (see picture) • Mt. Kilauea, Hawaii 12 Danger of Volcanos • Volcanoes are dangerous because they can erupt! • The smoke you inhale can kill you. • The hot lava will melt anything in its path.

13 Are all volcanoes dangerous? 14 Dormant Volcanoes • A dormant volcano is considered to be sleeping but able to wake up again. • It is one that is believed to be capable of erupting again in the future. 15 Extinct Volcanoes • Some volcanoes are extinct, which means that they can no longer erupt. • Mount Egremont in New Zealand (seen here) is an example of an extinct volcano. 16 Active Volcanoes • An active volcano is one that has erupted in the past 100 years and is likely to erupt again.

• Many volcanoes in Hawaii are active volcanoes. Hawaii has a Volcano National Park to visit active volcanoes. Vesuvius of Italy (seen here) is an example of an active volcano. 17 Visit to Mt. Vesuvius • Your teacher has climbed a volcano!

• In August, I visited Mt. Vesuvius in Naples, Italy. • It was a long walk to the top, but we made it! 18 Effects of a Volcano • Volcanoes can bury and destroy towns and cities. Daylight Dies- A Frail Becoming Rar on this page. Counter Strike 1.6 For Pc Windows 7.

Vesuvius is famous for covering the city of Pompeii. These are pictures I took on my visit to Pompeii! 19 Inside the Volcano • Ever wonder what the inside of a volcano looks like? Not much really! • After the eruption, the mountain top caves in. • You could sometimes see smoke venting out! • This is a picture I took of inside Mt.

Vesuvius 20 Your Task • Pick a famous volcano, such as Mt. Vesuvius • Research details about your volcano • Create an interactive PowerPoint presentation for the class about your volcano • Your presentation must include the location, type of volcano, danger of volcano, dates of eruption(s) and other interesting facts • Teach the class using your PowerPoint presentation • Good Luck! PowerShow.com is a leading presentation/slideshow sharing website.

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