Earth's Layers and Atmosphere Concepts

The video tutorial explains Earth's structure by comparing it to an egg, detailing the crust, mantle, and core. It explores volcanoes, magma, and how they reveal Earth's interior. The video also covers Earth's water and air composition, highlighting the major gases. Finally, it describes the layers of Earth's atmosphere and their characteristics.

What is the outermost layer of the Earth called?

• Mantle

• Lithosphere

• Core

• Crust

What is the innermost layer of the Earth known as?

• Crust

• Mantle

• Core

• Lithosphere

What is the hot, melted material inside the Earth called?

• Basalt

• Granite

• Magma

• Lava

How do scientists study the inside of the Earth?

• By using sonar

• By using satellites

• By studying lava

• By drilling

What percentage of the Earth's surface is covered by water?

• 50%

• 60%

• 70%

• 80%

Which gas makes up the largest portion of Earth's atmosphere?

• Argon

• Carbon Dioxide

• Oxygen

• Nitrogen

In which atmospheric layer do satellites fly?

• Stratosphere

• Thermosphere

• Troposphere

• Mesosphere

Which layer of the atmosphere is closest to the Earth's surface?

• Mesosphere

• Troposphere

• Stratosphere

• Exosphere

Why does heavy air settle at the bottom layer of the atmosphere?

• Because it is lighter

• Because it is colder

• Because it is denser

• Because it is warmer

What happens to air molecules as they rise in the atmosphere?

• They become denser

• They cool down

• They become heavier

• They spread out