4 th grade science by: lindsey scott. learning objectives as a result from this power point, the...
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![Page 1: 4 th Grade Science By: Lindsey Scott. Learning Objectives As a result from this power point, the students will know about volcanoes and other properties](https://reader038.vdocuments.net/reader038/viewer/2022110400/56649da35503460f94a905a6/html5/thumbnails/1.jpg)
4th Grade Science By: Lindsey Scott
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Learning Objectives
• As a result from this power point, the students will know about volcanoes and other properties volcanoes contain.
• The quiz will be a review on the subject the students just learned and will be a way for me, as the teacher, to see if they understood the lesson.
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Volcanoes
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What is in Volcanoes?• Magma - molten rock below the
Earth’s surface.• Lava – magma on the Earth’s surface.
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Different Types of Volcanoes
1.Shield Volcanoes2.Composite Volcanoes3.Cinder Cone Volcanoes
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Shield Volcano
• Made of lava • Has a small and gentle slope• Mostly around oceans
Example: Volcanoes near the Islands of Hawaii
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Composite Volcanoes
• Small in size with a steep slope• Short life span• Made of pyroclastic flow– Pyroclastic flow – fast moving current of hot gas
and rock.
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Mt. St. Helens
• Mt. St. Helens is a Composite Volcano• Erupted in the state of Washington in 1980• It was very destructive and deadly• The eruption created an earthquake, landslide, and
explosion.– Earthquake – shaking of the ground caused by the release
of energy stored in the rocks beneath the Earth’s surface.– Landslide – when gravity pulls the ground and creates
ground movement (including rocks, soil, etc.) along a slope or mountain side.
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Mt. St. Helens
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Cinder Cone Volcanoes
• Made of both Lava and Pyroclastic flow• Semi-Steep• Long life spans (about 100s to 1,000s of years
without activity)
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Quiz
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Question 1
How is magma different than lava?
a. Lava is below the Earth’s surfaceb. Magma is below the Earth’s surfacec. There is no difference
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Next Question
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Correct Answer: b. Magma is below the Earth’s surface
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Question 2
Which volcano is this?
a. Shield Volcanob. Composite Volcanoc. Cinder Cone Volcano
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Correct Answer: c. Cinder Cone Volcano
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Question 3
Which Volcano is Mt. St. Helens?
a. Shield Volcanob. Composite Volcanoc. Cinder Cone Volcano
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Correct Answer: b. Composite Volcano
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Great Job!!Have a wonderful rest of the day! I will see all of you bright and early tomorrow morning!
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Source Cited
Marshak, Stephen. Essentials of Geology. W. W. Norton & Company, Incorporated, February 27, 2009. Print
Wikipedia. Mount St. Helens. 2013. http://en.wikipedia.org/wiki/Mount_St._Helens