Volcanoes

4. hot molten rock that is above ground
7. Mount saint Helens is in what state of America?
11. small volcanoes made of ash and rocks and the last word is cone.
13. a mountain that forms when magma is forced to the earth's surface.
14. composite volcanoes are also called what?
16. almost entirely magma and lava, looks like a shield
18. volcanoes can do this when active, it is when lava comes out of the volcano
19. This is a boundary around the pacific plate, takes up 75% of the earth's volcanoes, and is the Ring of _____
20. more water and gas can cause a bigger what?

1. ash blocking sunlight and being in the air can make it hard to do what?
2. high viscosity and more silica can cause ______ flowing magma. li
3. fast flowing clouds of hot ash and volcanic glass rolling down the mountainside. ________ flows.
5. ash from volcanoes shoots into the air and blocks this.
6. an active composite volcano in America is Mount St. _______
8. hot molten rock that is underground
9. these volcanoes have explosive eruptions and have outpourings of lava
10. technical name for the crust and upper mantle.
12. shield volcanoes are found along these boundaries.
15. composite volcanoes are found along these boundaries
17. lava is just a bunch of hot, molten _______.