Magma — Science definition
Molten (melted) rock beneath Earth's surface; the same material is called lava once it erupts above the surface.
Where it is taught
- The Rock Cycle — Rocks, Landscapes & Water, Earth & Space Science, Grade 9
In use
Magma — molten rock, called lava once it erupts — cools and hardens into igneous rock.
The Rock Cycle
Questions using magma
Problem 1
What is magma called once it erupts above Earth's surface?
- Sediment
- Lava
- Ore
- Cement
Answer and explanation
Lava
Magma is called lava once it erupts above the surface.