1. What is a volcano? A weak spot in the crust where magma has come to the surface. EX: http://alaskadestination.com/alaska-volcano-images/

2. What is volcanism? any phenomena associated with volcanic activity. EX: (next slide) What volcanic phenomena have you heard of?

3. What are some of the things that can happen during an explosive eruption ? Explosion breaks lava into fragments of different sizes. a. volcanic ash b. cinders c. bombs http://www.gc.maricopa.edu/earthsci/imagearchive/b ombs.htm http://www.gc.maricopa.edu/earthsci/imagearchive/b ombs.htm Pyroclastic flow: a mixture of hot gases, ash, cinders, and bombs. http://www.volcano.si.edu/volcanoes/region15/peru/ubinas/3110ubi7.jpg

4. What is pahoehoe? Lava that flows easily and hardens into a rippled surface. EX: http://seismo.berkeley.edu/~manga/EPS214/rope.jpg

5. What is A’a? Flows slowly and hardens into rough chunks. EX: http://www.decadevolcano.net/photos/keywords/a_a_lava.htm