What is a volcano?
How many types of volcanoes are there? Name them
Active, dormant, and extinct volcanoes
What is lava?
Melted rock that flows out
What is a horizontal layer of magma that hardens between rock layers called?
Sill
What is crater?
The opening at the top of a volcano.
What happens after volcanoes eruption?
Lava flows down, and ash spreads.
What is explosive eruption?
Big explosions with a lot of ash and gas.
