Find 15 volcano related terms in the puzzle

1.LAVA
2.ASH
3.CRATER
4.GASES
5.ROCK
6.HOT
7.DEEP
8.COMPOSITE
9.CONE
10.PLUME
11.ERUPTION
12.ACTIVE
13.VISCOCITY
14.VENT
15. SAVE? CASE?
*/ I can't find out the last term