Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky...
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Transcript of Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky...
![Page 1: Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma.](https://reader036.fdocuments.net/reader036/viewer/2022081007/56649dcf5503460f94ac41ba/html5/thumbnails/1.jpg)
Volcanoes
Volcanoes form at weak spots in the Earth’s crust.
Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma chamber
Lava forms when magma reaches the Earth’s surface and erupts from the volcano crater
![Page 2: Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma.](https://reader036.fdocuments.net/reader036/viewer/2022081007/56649dcf5503460f94ac41ba/html5/thumbnails/2.jpg)
Volcano Model Lab
Terms
Volcano - a vent (opening) at the Earth's crust through which magma (molten rock) and associated gases erupt.
Magma - molten rock beneath the surface of the Earth.
Lava - magma that has reached the surface.
Cinders - lava fragments about 1 centimeter in diameter.
Pyroclastics (“fire fragments”) - ash, cinders, angular blocks, and rounded bombs (block and bomb fragments can be over 1 meter in diameter).
Explosive eruptions – eject lava and pyroclastics.
Quiet eruptions – fluid lava flows out of a volcano's vent.
![Page 3: Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma.](https://reader036.fdocuments.net/reader036/viewer/2022081007/56649dcf5503460f94ac41ba/html5/thumbnails/3.jpg)
![Page 4: Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma.](https://reader036.fdocuments.net/reader036/viewer/2022081007/56649dcf5503460f94ac41ba/html5/thumbnails/4.jpg)
Types of volcanoes
Compare and contrast. This means to
state how they are the same and how
they are different
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Types of Volcanoes
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What determines lava flow?
Name 3 features that determine lava flow. In other words, state the factors that make lava flow quickly or slowly.
1- 2- 3-Complete WB pages 63-
71
![Page 7: Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky substances. It forms within the Earth in the Magma.](https://reader036.fdocuments.net/reader036/viewer/2022081007/56649dcf5503460f94ac41ba/html5/thumbnails/7.jpg)
Research time. Locate 3-5 facts for each type of volcano.