Across
- 2. a vent in Earth's crust through which melted - or molten - rock flows.
- 6. large steep sided volcanoes that result from explosive eruptions of andesitic and rhyolitic lava; convergent plate boundary
- 7. Molten rock below Earth's surface.
- 8. Molten rock that erupts onto Earth's surface.
Down
- 1. volcanoes with large gentle slopes of basaltic lava; divergent plate boundaries.
- 2. a liquid's resistance to flow
- 3. small steep sided volcanoes that erupt gas-rich basaltic lavas
- 4. tiny particles of pulverized volcanic rock and glass
- 5. volcanoes that are not associated with plate boundaries.