Earth's Formation and Geological Processes

The video explains the structure of the Earth, detailing its layers: the crust, mantle, and core. It discusses the heat generated during Earth's formation 4.6 billion years ago, which remains trapped and causes partial melting of rocks in the mantle. This process forms magma, which can surface as lava through ruptures, reaching temperatures of up to 1200°C. As lava cools, it solidifies into igneous rocks. The video concludes with a promotion for a learning app.

Which layer of the Earth is directly beneath the crust?

• Outer core

• Inner core

• Mantle

• Lithosphere

What event during Earth's formation contributed to the heat trapped inside it?

• Volcanic eruptions

• Material collisions

• Solar radiation

• Tectonic shifts

Approximately how many billion years ago did the Earth form?

• 4.6 billion years ago

• 6.1 billion years ago

• 3.5 billion years ago

• 5.2 billion years ago

What is the primary cause of magma formation in the upper mantle?

• High pressure

• Low pressure

• Super high temperatures

• Presence of water

What happens to lava when it is exposed to the atmosphere?

• It evaporates

• It cools and solidifies

• It remains molten indefinitely

• It heats up further

What type of rock is formed when lava cools and solidifies?

• Basalt rock

• Sedimentary rock

• Metamorphic rock

• Igneous rock