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Notebook Lesson on Volcanoes. Eric Angat Teacher. Essential Question. How are we affected by Volcanic eruptions?. Instructions. Get your notebook. Accomplish or answer the 16 item activity. The three types of volcanoes. Gentle or non-explosive eruptions of flowing lava. widest.
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Notebook Lesson on Volcanoes Eric Angat Teacher
Essential Question How are we affected by Volcanic eruptions?
Instructions • Get your notebook. • Accomplish or answer the 16 item activity.
The three types of volcanoes. • Gentle or non-explosive • eruptions of flowing lava. • widest • Most violent ( explosive) eruption. • Smallest type • Explosive or non- • explosive eruption • Biggest http://www.geology.utah.gov/teacher/tc/tc0599.htm
1. What is a crater lake? lake Crater lake – caldera filled with water.
2. Why do volcanoes erupt and explode? Magma is lighter than rock so it rises and comes out as lava. The pressure that it carries with it causes volcanoes to erupt and even explode when lake water comes in contact with the very hot lava.
3. Describe a Lava Flow. Lava flow is molten rock flowing from the slope of the volcano.
4. What is a volcano? http://www.youtube.com/watch?v=reNz6CIKE00
5. How do volcanic islands form? http://www.youtube.com/watch?v=RMtuTfAqAbo
6. What is lahar? http://www.youtube.com/watch?v=RStpgsLkhhY
A lahar is a volcanic rocks, ash and water that flows rapidly along a slope.
Effects of lahar? Lahars are extremely deadly destructive they can destroy any structures in their path.
Lahars can block tributary streams. Tributaries are water channels that supply water to the river.
d. Lahars can lead to increased deposition of sediment. Deposition of sediment makes rivers shallow.
7. What is lava? http://www.youtube.com/watch?v=egEGaBXG3Kg
8. What is pyroclastic cloud? http://www.youtube.com/watch?v=yvG_N7eqMWk
9. What is pyroclastic flow? http://www.youtube.com/watch?v=Bz7WCttwXQk
Pyroclasticrefers to the masses of rock fragments and gases from a volcano.
11. Why do volcanologist study the gases from volcanoes? 12. Where do volcanic gases come from?
13. Copy the following and use Venn diagram to show the similarities and differences between lava flow, pyroclastic flow, and lahar. Lava flow - the flow of molten rock from a volcano 2. Pyroclastic flow - a fast moving cloud of hot ash, gases, and rock from a volcano 3. Lahar - a fast moving flow of muddy water form a volcano
Pyroclastic flow Lava Molten rocks Fast moving volcanic ash and rocks All three are from volcanic eruptions. Lahar Fast moving flow of muddy water