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We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
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by teacher: Alfonso Gonzalez
Blog Entries

Volcanoes and LAVA

So 3 types of volcanoes are1: Composite volcanoes which are, ten thousand ore more feet high. They are considred a hollywood type volcano, they are also the large size of ten miles across. 

#2. A Cinder Cone volcano, they are pretty small volcanoes. The amount of lava is close to none,this volcano also has very grainy cinders.

#3. A Sheild volcano, they aremostly found in differen't parts of Hawaii. It is a very wide volcano and is also thousands of feet high. The kind of the Shield volcano has the biggest volcano in the world.

three kinds of lava are,

#1. The Low Water/Low Silica lava is mostly a pretty runny lava type, so technicaly it has alot of visocity. It is not runny like water but more realisticly like hot honey or hot wax.

#2. The High water/High silicahas lts of disolved gasses and its high viocity is deadly.as the lava ooze's to the surface, the gasses quickly become bubbles. 

3. High water/low silica lava shows behavior's that are similar to our anoligies of blowing bubbles in water or a milk shake. If a erupting volcanohas low viocity (like water) it flowsout of the central surface.

Article posted October 27, 2009 at 09:25 PM • comment • Reads 69 • see all articles

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