Science quiz on volcano

It is a vent or fissure in the planet's crust through which lava, ash, rock and gases erupt.

• Mountain

• Volcano

• Island

• Hill

It is the silicate rock that is hot enough to be in liquid form, and which is expelled from a volcano during an eruption.

• Ash

• Magma

• Lava

• Ash fall

The side of a volcano

• Sill

• Flank

• Throat

• Conduit

Type of volcano that may be tall but tend to be very broad, with less steep slopes than other volcanoes

• Cinder

• stratovolcano

• Volcanic dome

• Shield

large underground pool of molten rock sitting underneath the Earth’s crust

• magma chamber

• conduit

• magma

• lava