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Magmas
巖漿
Have you heard about liquid rock?
你聽說(shuō)過液態(tài)巖石嗎？
It might sound funny to you.
這聽起來(lái)可能很好笑。
How can a rock be liquid? While it can be.
巖石怎么可能是液體呢？但有時(shí)它還真是。
If the temperature is very high, rock melts.
如果溫度非常高，巖石就會(huì)熔化。
What do you call this melted rock? Magma.
我們?cè)趺捶Q呼這種熔化的巖石呢？巖漿。
So where can we see magma? In volcanoes.
那么我們能在哪兒看到巖漿呢？在火山里。
Inside volcanoes, the temperature is over 700℃.
在火山內(nèi)部，溫度超過700℃。
So the temperature is high enough to melt rocks.
這么高的溫度足以熔化巖石。
When a volcano erupts, magma comes out.
當(dāng)火山爆發(fā)時(shí)，巖漿噴涌而出。
The color of magma is red.
此時(shí)，它的顏色是紅的。
But when magma is cooled and becomes solid rock, it becomes black.
但當(dāng)巖漿冷卻變成固體巖石時(shí)，它就變成了黑色。
