A volcano is a mountain that forms when layers of lava and volcanic ash erupt and build up.
Between the molten iron core and the thin crust at the surface deep inside the earth there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt.
3. Magma rises when extremely high temperatures and pressure cause the rock to melt and become liquid rock or magma. When a large body of magma has formed, it rises through the denser rock layers towards Earths surface.
4. The difference between magma and lava is that magma is the hot molten rock inside of a volcano and lava is the molten rock that has reached the earth's surface.
5. Volcanoes can occur at divergent plate boundaries, at the convergent plate boundaries, and at locations not at plate boundaries called hot spots.
6. Plate Tectonics and volcanoes are related because the earths crust and upper most mantle form plates that move around, and when these plates converge magma is created and forced to the surface forming volcanoes. Iceland, Hawaii, and Mount Saint Heleri were formed this way.
7. There is volcanic activity in Iceland because it sits on top of the Mid-Atlantic Ridge, which is a divergent plate boundary.
8. Volcanic activity around the Pacific Ring of Fire is caused by the tectonic movement at the boundary of the Pacific Plate.
9. The difference between Iceland's and Hawaiian Islands volcanic activity is that Iceland's sits on top of the Mid-Atlantic Ridge which is a divergent plate boundary, where a plates separate they form long deep cracks called rifts. The Hawaiian Islands sit on top of a hot spot under the Pacific Plate and the Pacific Plate is the moving over stationary hot spots.
10. Geothermal energy is the magma underneath volcanoes.
11. Two advantages of using geothermal energy to generate electricity in Hawaii would be to reduce the danger of oil spills from tankers and reduce air pollution.
These are words that most people associate with volcanoes. But some good effects can come out of volcanoes. ... Out of the 550 of the world's active volcanoes, the world's largest active volcano is Mauna Loa, it is one of the Hawaiian islands. ... Then there are underwater volcanoes and above ground volcanoes. ... This is the only volcano found on the planet mars. ...
These are words that most people associate with volcanoes. But some good effects can come out of volcanoes. ... Out of the 550 of the world's active volcanoes, the world's largest active volcano is Mauna Loa, it is one of the Hawaiian islands. ... Then there are underwater volcanoes and above ground volcanoes. ... This is the only volcano found on the planet mars. ...
How are volcanoes formed? Are there different types of volcanoes? ... Volcanoes are formed in different ways. ... These consist of the shield volcanoes, strato (composite) volcanoes, and caldera complex volcanoes. ... It is classified as a complex volcano, so it is an explosive and very steep strato volcano. ...
The term volcano refers to the opening or vent through which the molten rock and associated gases are expelled. ... Instead, volcanoes are built by the accumulation of their own eruptive products. ... Geologists have generally grouped volcanoes into four main kinds: cinder cones, composite volcanoes, shield volcanoes, and lava domes. ... When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt(explode). ... With many volcanoes erupting only every few hundred or thousand years, it's not possible to monitor every site. ...
This report features what are volcanoes, how are they formed and where are they located. It also has a recent occurrence of a volcano eruption and how did the community react to it. Volcanoes are mountains formed out of lava and ashes through an opening in the earths crust. ... After many eruptions volcanoes expand. There are two ways that volcanoes are formed. ...
Some of the most famous composite volcanoes include Mount St. ... At 6,893 meters in elevation, not only is it the highest active volcano in the world, but Ojos del Salado is the highest active volcano in Chile and the second highest active volcano in the Southern and Western Hemispheres. ... The Mayon Volcano is 2,462 meters in elevation and is a symmetrical composite volcano. ... Another harsh eruption from the Mayon Volcano was in 1993. ... Interesting facts such as how high a volcano's elevation is or how many deaths it caused makes a volcano well-known to the public eye. ...
A volcano can erupt many times in its lifetime. ... There are three major types of volcanoes, cinder cone volcanoes, composite volcanoes, and shield volcanoes. ... The second major type of volcano, the composite volcano, in contrast to the cinder cone can grow much larger. One famous example of a composite volcano is Mt. ... The third type of volcano is the shield volcano. ...
Volcanoes A volcano is a vent in the earth's crust through which magma (molten rock) and gas are released. ... Types of Volcanoes There are three different types of volcanoes that can be formed around a vent. ... Since these volcanoes consist of loose materials they do not grow as large as other volcanoes. ... The third type of volcano is the composite volcano. ... I then molded a volcano shape out of the clay. ...
This cone is what we know as a volcano. There are several ways in which a volcano can form, just as there are several different kinds of volcanoes. Among the different kinds of volcanoes are shield volcanoes, cinder cones, and composite volcanoes. The most majestic of the volcanoes are composite volcanoes, also known as strato-volcanoes. ... There are two types of shield volcanoes, Hawaiian volcanoes and Icelandic. ...
Some volcanoes are more active than others. ... Fuji are all examples of strata volcanos. Shield volcanoes are made of thousands of thin lava flows. ... Shield volcanoes are the largest volcanoes. ... After this, hot springs may form from the volcano. eventually volcanic heat will disappear, and cool water will issue from the volcano and the ground in it's vicinity. ...
