Volcanoes Volcanoes form at weak spots in the Earth’s crust. Magma is a molten mixture of rocky...

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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

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.

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.

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.
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.

Types of volcanoes

Compare and contrast. This means to

state how they are the same and how

they are different

Page 5: 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.

Types of Volcanoes

Page 6: 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.

What determines lava flow?

Name 3 features that determine lava flow. In other words, state the factors that make lava flow quickly or slowly.

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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.

Research time. Locate 3-5 facts for each type of volcano.