a volcano that is erupting or has shown signs that it may erupt in the near future
active volcano
15
A volcano that has not erupted for a long time, but may erupt again one day.
dormant volcano
15
How is volcano formed?
when hot molten rock, ash and gases escape from an opening in the Earth's surface
15
Large pieces of earths crust that move due to convection currents.
Plates
15
A theory stating that the earth's surface is broken into plates that move.
plate tectonics theory
15
to hit something
crash into something
15
showing by example; a picture
illustration
15
waves of energy that travel through the Earth
seismic waves
15
mineral which is primarily used to make steel (Thép)mineral which is primarily used to make steel (Thép)
iron
15
mineral mainly used to make alloy (hợp kim) such us stainless steel (thép không gỉ)
nickel
15
a colorful, glowing display in the sky caused when particles from the sun strike oxygen and nitrogen atoms in the ionosphere; also called the Northern Lights
aurora borealis
15
southern lights; caused by solar wind
aurora australis
15
A two-dimensional, or flat, representation of Earth's surface or a portion of it.
map
15
blowing out lava, rocks, and gases from a volcano
erupting
15
a flow of hot liquid rising into the air when a volcano erupts
