How Are Rocks Formed?
The Earth’s crust and upper mantle are collectively known as the lithosphere, from which the tectonic plates are composed. It is in the lithosphere that rocks are...
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Where Is Surtsey?
Surtsey is a volcanic island, a few miles south-west of the Westman Islands which are situated off the south coast of Iceland. The island appeared as a result of a...
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What Causes Volcanoes?
What Causes Volcanoes? Volcanoes form when pressures within the earth force melted rock and gases upward through cracks in the surface. The earth’s crust is made...
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Where Do Volcanoes Begin?
Where Do Volcanoes Begin? Volcanoes begin deep inside the earth. The earth’s crust is made up of giant pieces of rock called plates. Volcanoes are located where...
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What Are the Dark Spots on the Moon?
The dark spots we see on the moon are really the moon’s large flat plains. The moon’s rugged surface is covered with mountains, craters, and great lava...
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