Volcano Info	EnchantedLearning.com Volcano Dictionary		Volcano Activities and Printouts
	Types of Volcanoes	The Ring of Fire

Earth The Earth is the third planet from the sun.

ejecta Ejecta is material that has been thrown from a volcanic erutption. Some ejecta are lava bombs and tephra (pyroclastic material).

element An element is a chemically pure substance composed of atoms of a single type.

Eocene epoch The Eocene epoch (58-37 million years ago) was the time when primitive whales and many other mammals evolved.

Eon Time Phanerozoic Eon 540 million years ago through today Proterozoic Eon 2.5 billion years ago to 540 million years ago Archaeozoic Eon 3.9 to 2.5 billion years ago Hadean Eon 4.6 to 3.9 billion years ago eon Two or more geological eras form an eon, which is the largest division of geological time, lasting hundreds of millions of years.

equator The equator is an imaginary circle around the earth (or other planet or moon), halfway between the north and south poles.

era Two or more geological periods comprise an era, which is hundreds of millions of years in duration.

eruption An eruption is volcanic activity in which lava, tephra, or gases are released.

eruption cloud An eruption cloud (also called an ash cloud) is the cloud of ash, gas and rock fragments that forms after some volcanic eruptions.

Volcano Info	EnchantedLearning.com Volcano		Volcano Activities and Printouts
	Types of Volcanoes	The Ring of Fire

Click to read our Privacy Policy

E-mail