Volcanoes
What is a volcano?
A volcano is an opening in the Earth's crust where molten rock, gas, and ash can escape. Over time, these eruptions can build up layers of rock and ash, forming a cone-shaped mountain.
How does the volcanoes erupt?
Volcanoes erupt when magma, a molten rock, rises to the Earth's surface through vents
Tectonic plates
A tectonic plate is a giant, moving piece of the Earth's crust that floats on the semi-molten rock underneath.
How long do eruptions last?
The duration of an eruption varies depending on the volcano.
Where does the word "volcano" come from?
It originates from "Vulcan," the Roman god of fire.
Vent
The main opening from which volcanic materials are ejected.
Hazards include ash, gas, pyroclastic flows, volcanic tsunamis, and lahars.
True or False: The tallest volcano in the entire solar system is on Earth
False: It is located on Mars.
Magma
Magma is the molten rock below the surface
What is the difference between magma and lava?
Magma is molten rock beneath the Earth's surface, while lava is molten rock that has been expelled onto the surface by a volcano.
Are all volcanoes cone-shaped mountains?
No, not all volcanoes are cone-shaped mountains.
lava
Lava is hot, liquefied rock that flows from a volcano or other opening in the surface of Earth
What is the world's highest volcano?
What is the name of Roman god of fire?
Igneous rock
Igneous rocks are formed from the cooling and solidification of molten rock, called magma (below ground) or lava (above ground).