万科V-learn父母学院-小西妈双语工程1706期217号kevin20171120打卡

Reading: all about volcano, we talked about volcano. A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Some volcano are active, some are dormant or inactive. Some are on the land, some are under the sea.

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We also Learnt the mount saint helens

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The Hawaiian islands were formed by volcanic activity initiated at an undersea magma source called the Hawaii hotspot. It took millions of years to form the island of Hawaii.