Across
- 4. the most common type of volcano
- 6. build from layers of lava flow, ash and blocks of unmelted stone
- 8. tiny fragments of lava and rocks
- 9. steam of molten rocks that comes out of an erupting volcano
- 10. where magma is released to the surface
Down
- 1. second opening of a volcano
- 2. big enough to affect the whole planet
- 3. have wide bases and steep slopes
- 5. sometimes called stratovolcanoes
- 7. ash and lava that forms the shape of a volcano