Seafloor Spreading, Earthquakes, Volcanoes

Earthquakes and Volcanoes (Interactive!)

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Volcanoes

Lets start with volcanoes. You probably know that they are dangerous and they spit out lava, or magma I should say. Let's dive deeper into volcanoes!!

This is a active volcano. This volcano is spitting out lava. Lava is  hot, liquefied rock that flows from a volcano or other opening in the surface of Earth. Lava is very hot and can destroy and burn villages near the volcano that the lava falls on.

Volcanoes can be active, or dormant. Dormant volcanoes have a low chance of waking up and becoming an active volcano, what you see here on the screen. Active volcanoes spit out lava, but not all the time. After a volcano has erupted, the ground is very hot! Only Scientists can go near volcanoes, because they have a safe gear so they do not get burnt.

Multiple Choice

Match the answers! What is a active volcano?

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Multiple Choice

How is a volcano formed?

• It forms randomly inside mountains when it gets super hot.

• When magma finds a way to escape from beneath the earth's surface, it creates a volcano.

• When lava from the Earth's core finds a way into a mountain to create a volcano.

Multiple Choice

What is magma called when it reaches the surface of Earth?

• Lava

• viscosity

• toxic gas

This is the aftermath of a earthquake. Earthquakes are very destructive. Lets take a look on how a earthquake forms! But first, we need to know what tectonic plates are!

Read this slide.

Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core. 

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Multiple Choice

The huge pieces of the earth's crust are called ____________________________. 

• crust
• plates
• directions
• seismos

Multiple Choice

The outside layer of the earth is called ______________________.

• core
• crust
• mantle
• outer core

Lets look at the layers of the Earth. The crust is a thin outer layer of the Earth! The mantle is the layer under the crust. The outer core is VERY hot. And last but not least, the inner core. It is the hottest layer of the Earth.

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Multiple Choice

How is this plate moving?

• more on top of the other

• bumping together

• move away from each other

• slide against each other

Multiple Choice

How are these plates moving?

• bumping together

• slide against each other

• move away from each other

• more on top of another

Multiple Choice

How are these plates moving?

• move away from each other

• bumping together

• slide against each other

• more on top of another

Multiple Choice

How are these plates moving?

• slide against each other

• move away from each other

• more on top of another

• bumping together

Multiple Choice

How do tectonic plates look like?

Multiple Choice

The earth has top layer called...

• crust

• ocean

• land

• sea

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What have we learned?

• The layers of the earth

• How volcanoes are formed

• How earthquakes are formed

• What is magma and lava

• What is tectonic plates