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Our Dangerous Earth Volcanoes Written by Sarah J. Keller Copyright 2001 Isaveatree.com ISBN 0-9714299-0-1 (50 Book Set) Table Of Contents A hole in the earth……………………..4 Flowing Lava…………………………..10 Dormant volcano……………………...14 Extinct volcano……………………..…18 Glossary………………………………..24 Index……………………………………25 Books to read and web sites to visit…..26 2. A volcano is a hole in our earth that sometimes spits out melted rocks, dust, ash, and hot gases. The melted rock inside the volcano is called magma. 4. The melted rock turns into flaming lava when it explodes out of the volcano with ash and hot gas. Lava can flow down the volcano very fast. 6. The volcano grows into a large cone shaped mountain of hard lava and ash that bursts out of the hole during an eruption. 8. The violent burst of gas, rocks, ash, and flaming lava is very dangerous. Flowing lava quickly burns everything in its path. 10. Active volcanoes can erupt at any time. About 500 volcanoes are active on our earth. Several are in Alaska and Hawaii. 12. A resting volcano is said to be dormant. They are not active now, but they might erupt again someday. The Western United States has some dormant volcanoes. 14. Mount St. Helen’s erupted in 1980, in Washington State. At the time, it was considered a dormant volcano. It smoked for a few weeks and then exploded. It was the worst volcanic disaster in American history. 16. A volcano that will never be active again is called an extinct volcano. Crater Lake in Oregon is inside a huge extinct volcano. A crater is a hole in the earth or on top of a mountain formed by a volcano. 18. Some volcanoes are loud and have flaming rivers of lava pouring down. Some volcanoes just quietly spit out clouds of steam and smoke. Not all volcanoes have lava. 20. Volcanoes can create islands out of lava that rises from the ocean floor. Volcanic ash and lava make good soil. Volcanoes can also provide heat and power. Maybe some day we will get our power from volcanoes. 22. Index Glossary active volcano – a volcano that can erupt at any time active volcanoes, 12 Crater Lake, Oregon – a lake inside a huge extinct volcano Crater Lake, Oregon, 18 dormant volcano, 14 Dormant volcano- a resting volcano, not active now, but it could be later erupt - to burst out violently, as lava bursts out of a volcano eruption, 8 extinct volcano, 18 gases, 4 extinct volcano – a volcano that will never erupt ever again lava – melted rock exploding out of the top of a volcano lava, 6, 10, 20 magma, 4 melted rock, 4 magma – melted rock still inside the volcano volcano – a large cone shaped hole in the earth that sometimes spits out melted rocks, dust, gas, and ash 24. Mount Saint Helen’s, 16 resting volcano, 14 25. More Great Books To Read Title: The Magic School Bus / Blows it’s Top Author: Joanna Cole and Bruce Degen Publisher: Scholastic Copyright: 1996 Title: Eyewitness Books / Volacano & Earthquake Author: Susanna van Rose Publisher: Dorling Kindersley Copyright: 1992 Websites Link 1 Link 2 26. Credits Sarah Keller – Author Douglas Meyers- Technology Director Dan Mader- Art Director / Illustrator Robert Rance - Photo Selections Robert Rance - Audio Engineering Robert Rance – Research & Development Photo Credits National Oceanic and Atmospheric Administration Some images in collection 1 (50 book set) www.arttoday.com I save a tree reserves the right to change photos at any time