Why do some volcanoes explode?

Front

a type of rock formed when thin, fast-moving lava cools and is usually very dark in color

Back

basalt

Front

What type of volcano has slow-flowing, thick lava and usually erupts with an explosion? Options: cone volcano, shield volcano

Back

cone volcano

Front

when lava quickly comes out of a volcano

Back

erupt

Front

a type of rock formed when thick, slow-moving lava cools and is usually light in color

Back

felsite

Front

liquid rock that flows or explodes from a volcano

Back

lava

Front

a solid natural material that is found on and under the surface of the Earth

Back

rock

Front

a volcano with fast-flowing, thin lava that does not usually erupt with an explosion

Back

shield volcano

Front

a high area of land with an opening where lava flows or explodes out from

Back

volcano