Volcano science 6
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Lesson 4 volcanoes & different volcanic activities
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Transcript of Volcano science 6
Lesson 4volcanoes & different volcanic activities
Turn your book on page 335!!!!!!
Volcano
• Is an opening in the earth’s crust where lava, pyroclasts, and gases are ejected onto the surface during eruptions.
• Calderas – that exceed about 1 km in diameter• formed when the summit of volcano collapses during
eruptions.
Kinds of volcano
•Shield volcano•Cinder cone volcano•Composite volcano or stratovolcano
Shield volcano
The largest shield volcano
Cinder cone volcano• Is built almost entirely of loose
fragments called CINDERS
Composite volcano
According to activity• Active• Dormant• Extinct
Volcanic eruptions• Explosive or violent eruption• Quiet or non – explosive eruption
Thank you!!!