Volcanoes form where molten rock erupts through the Earth's surface. Magma is liquid rock inside a volcano, while lava is the molten rock that flows out during an eruption at temperatures between 700-1200°C. The Earth has three main layers - the crust, mantle, and core. There are approximately 1,510 active volcanoes worldwide, with around 80 located under oceans.

2. Facts about Volcanoes
A volcano is a landform where molten rock
erupts through the surface of the planet.
What is the difference between lava and
Magma?
 Magma is liquid rock inside a volcano.
 Lava is liquid rock that flows out of a
volcano. Fresh lava ranges from 700° to
1,200° C in temperature and glows red hot to
white hot as it flows.

3. What are the three layers the
Earth is made of?
Crust The crust is the outer layer of
Earth. It is about 18 miles thick. It is
the part we live on.
Mantle The second layer is called the
mantle. It is about 1,800 miles thick.
Core The inner layer is called the
core.

4. How many volcanoes are
there in the world?
There are around 1510 active
volcanoes in the world. We currently
know of 80 or more which are under
the oceans.

5. Present by Sam Goodbody