Exploring the Violent Forces of Earth: Earthquakes and Volcanoes

The video explains how volcanoes and earthquakes reveal the immense forces within the Earth. Volcanoes form from magma rising from the mantle, leading to eruptions when pressure builds. Earthquakes occur when tectonic plates slide and release strain, causing the ground to shake. Both phenomena demonstrate the Earth's powerful internal energy.

What does a volcano resemble before it erupts?

• A mountain

• A forest

• A river

• A desert

Where do the mountains of fire originate from?

• The Earth's surface

• The Earth's crust

• The Earth's core

• The Earth's mantle

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What is magma hotter than?

• Lava

• Boiling water

• Molten iron

• Steam

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What happens when magma reaches the surface and flows down the slopes?

• It forms a new mountain

• It turns into ash

• It turns into lava

• It cools down immediately

What are tectonic plates?

• Parts of the ocean floor

• Layers of the Earth's atmosphere

• Small rocks on the Earth's surface

• Large pieces of the Earth's crust

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What causes the Earth to shake during an earthquake?

• Volcanic eruptions

• Tectonic plates getting tangled and then untangling

• Heavy rainfall

• Tectonic plates sliding smoothly

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What is the point called where the strain is released during an earthquake?

• Focus

• Fault line

• Epicenter

• Hypocenter

In which direction do the shocks spread from the epicenter?

• In all directions

• Only downwards

• Only sideways

• Only upwards

What do volcanoes and earthquakes reveal about the Earth?

• The stability of the Earth's crust

• The calmness of the Earth's interior

• The beauty of the Earth's surface

• The enormous energy and forces inside the Earth