Volcano and Earth Science Terms

Front

What is molten?

Back

Something that is melted because it is very hot, like how chocolate melts in the sun or how lava is molten when it comes out of a volcano.

Front

What is lava?

Back

Hot, melted rock that comes out of a volcano during an eruption. It can flow down the side of the volcano and cool down to form solid rock.

Front

What is a crater?

Back

A big, round hole at the top of a volcano that is created when an eruption happens or when the volcano’s top falls in.

Front

What is a vent?

Back

A small opening in the ground or a volcano where gases, steam, or lava can escape. It's like a natural chimney for the volcano.

Front

What is the crust?

Back

The hard, outer layer of the Earth. It’s like the shell of an egg, but it is made up of rock and is where we live.

Front

What are cinders?

Back

Small pieces of burned rock or ash that are ejected during a volcanic eruption. They can be black or gray and might be hot when they fall.

Front

What is an eruption?

Back

When a volcano explodes or releases gas, ash, and lava. It's like a big, loud blast that can send stuff high into the air.

Front

What is magma?

Back

Hot, melted rock that is found deep inside the Earth. When it escapes to the surface, it is called lava.

Front

What is the summit?

Back

The very top or highest point of a mountain or volcano, like the peak you reach when you climb to the top.