Library Books
Resource Key
When accessing content use the numbers below to guide you:
LEVEL 1
brief, basic information laid out in an easy-to-read format. May use informal language. (Includes most news articles)
LEVEL 2
provides additional background information and further reading. Introduces some subject-specific language.
LEVEL 3
lengthy, detailed information. Frequently uses technical/subject-specific language. (Includes most analytical articles)
Databases
- World Book Encyclopedia This link opens in a new window
Online version of the complete reference work along with dictionary, atlas, links, magazines, historical documents, audio, video, images, and 3D photograph
- Britannica Schools This link opens in a new window
Britannica School covers the core subject areas of English, Maths, Science and History. Interactive lessons, activities, games, stories, worksheets, manipulatives, study guides and research tools.
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Volcano Gallery
Volcanoes
A volcano is a vent, or opening, in Earth’s surface through which molten rock, gases, and ash erupt. The word also refers to the form or structure, usually conical, produced by accumulations of erupted material. In some volcanic eruptions, the molten rock—called magma when it is underground and lava when it reaches the surface—flows slowly out of the vent. In more violent eruptions, lava shoots straight up, and rock fragments are ejected in a great cloud of ash-laden gas that rises high into the air.
Humanity has long been awed by this powerful force of nature. The Romans attributed volcanic events to Vulcan, the god of fire and metalworking. In ad 79 the eruption of Mount Vesuvius destroyed the Roman cities of Pompeii and Herculaneum. Polynesians believe volcanoes to be ruled by the fire goddess Pele. One of the most spectacular volcanic eruptions in recorded history occurred in 1883 with the explosion of Krakatoa, an island in the Sunda Strait near Java. A more recent example from the United States is the dramatic 1980 eruption of Mount St. Helens in the Cascade Range in Washington State.
Volcano. (2016). In Encyclopædia Britannica. Retrieved fromhttp://school.eb.com.au.db.plcscotch.wa.edu.au/levels/middle/article/277623
Search Terms
volcano, volcanology, eruption, geothermal energy, lahar, pyroclastic, tephra, hazards, land-use
Definitions
- Volcanonoun (pl) -noes, -nos
1.an opening in the earth's crust from which molten lava, rock fragments, ashes, dust, and gases are ejected from below the earth's surface
2. a mountain formed from volcanic material ejected from a vent in a central crater