Volcanoes! | Science Trek
Автор: Science Trek
Загружено: 2019-03-04
Просмотров: 3355
Описание:
More than 80 percent of the earth’s surface came from volcanoes. How are they formed? What is the difference between magma and lava? What kind of volcanoes are there? Find out more about these explosive marvels of nature.
Volcanoes ['väl-'kā-nō-z]
An opening in the surface of the earth through which lava, gases and ash are forced out to form a mountain when cooled.
A volcano can be described as part of the earth's plumbing system. Magma, or molten rock from under the earth, pushes upward through a sort of natural pipe and sometimes explodes lava out of the ground. Volcanoes created many of Idaho's mountains and plains. Scientists study volcanoes to learn more about the earth and to protect the millions of people who live near these fascinating geological features. Learn more about volcanoes on this episode of Science Trek!
You'll find lesson plans, facts, games, and more on our Science Trek website: https://sciencetrek.org/topics/volcanoes
#science #scienceforkids #sciencetrek #volcanoes #scientists #lava #magma
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