Have you ever heard of the volcano called Mount St. Helens? You probably have since it is a very well known volcano, but if you haven’t, then I will tell you all you need to know about the volcano. Mount St. Helens is a stratovolcano. Stratovolcanoes are also considered to be a composite volcano. Composite volcanoes are the type of cone-shaped volcanoes. Mount St. Helens is made up of layers of hardened lava and rock fragments, because it is a composite volcano. Mount St. Helens has had many eruptions in the past so it means that it is an active volcano,an explosive volcano, and it is dormant. It’s magma is high in silica, so Mount St. Helens eruptions are destructive, dangerous, and violent. Mount St. Helens is 1,000 years old. Scientist
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Helens has erupted many times in the past and will in future events. Some eruptions have been much more dangerous or more violent than others, because it depends on the amount of silica it has in the magma. Silica is a major portion of magma. If the magma was high in silica, then the eruption would be so much more powerful. If the magma had less silica,it would seem to be more easy to flow out of the volcano, and escapes fairly easy, so the eruption won’t be so destructive as it would be if it had more silica in it. Mount St. Helens had it’s most recent eruption in 2008. Mount St. Helens had at least 4 major eruptions in the past. In it’s most tremendous eruption in 1980, it killed only 57 people. I know that may not sound like a lot of people, but it was a really serious eruption. It cost 1.1 billion of dollars to repair and fix all of it’s damage it has done. Mount St. Helens has erupted many more times since that eruption had occurred. It seems like it was one of the biggest eruptions Mount St. Helens has ever had in it’s past eruptions! Mount St. Helens has been much more noticed since the eruption has happened. In my science book it says that scientists monitor volcanoes and I think that is a great and safe idea so that they can prepare for any eruptions and it saves many lives.
So far you have learned so many facts about Mount St. Helens! The reason I chose to do my project on Mount St. Helens was because of how great it is. Also, because it is a very well known
Helens has erupted many times in the past and will in future events. Some eruptions have been much more dangerous or more violent than others, because it depends on the amount of silica it has in the magma. Silica is a major portion of magma. If the magma was high in silica, then the eruption would be so much more powerful. If the magma had less silica,it would seem to be more easy to flow out of the volcano, and escapes fairly easy, so the eruption won’t be so destructive as it would be if it had more silica in it. Mount St. Helens had it’s most recent eruption in 2008. Mount St. Helens had at least 4 major eruptions in the past. In it’s most tremendous eruption in 1980, it killed only 57 people. I know that may not sound like a lot of people, but it was a really serious eruption. It cost 1.1 billion of dollars to repair and fix all of it’s damage it has done. Mount St. Helens has erupted many more times since that eruption had occurred. It seems like it was one of the biggest eruptions Mount St. Helens has ever had in it’s past eruptions! Mount St. Helens has been much more noticed since the eruption has happened. In my science book it says that scientists monitor volcanoes and I think that is a great and safe idea so that they can prepare for any eruptions and it saves many lives.
So far you have learned so many facts about Mount St. Helens! The reason I chose to do my project on Mount St. Helens was because of how great it is. Also, because it is a very well known