Exploring Earth's Spheres

The video tutorial covers Earth's four major spheres: atmosphere, hydrosphere, geosphere, and biosphere. It explains the composition and significance of each sphere, including the atmosphere's role in protection and weather, the hydrosphere's water bodies, the geosphere's layers, and the biosphere's living organisms. The tutorial also discusses the inner core's solid state due to pressure and its role in creating Earth's magnetic field.

What is the primary function of Earth's atmosphere?

• To provide water

• To support plant growth

• To protect from the Sun and provide oxygen

• To create mountains

Why is the atmosphere less dense as you move away from Earth?

• Due to the presence of more gases

• Because of the decrease in pressure

• Because of the increase in temperature

• Due to the increase in gravity

Which of the following is part of the hydrosphere?

• Mountains

• Forests

• Rivers

• Deserts

Tags

NGSS.MS-ESS2-4

What does the term 'geo' in geosphere mean?

• Water

• Rock or Earth

• Air

• Life

Which layer of the geosphere is the hottest but solid?

• Crust

• Mantle

• Outer core

• Inner core

What is the outermost layer of the geosphere called?

• Mantle

• Core

• Crust

• Lithosphere

What is the main reason the inner core is solid despite its high temperature?

• Lack of oxygen

• High pressure

• Low temperature

• Presence of water

What creates Earth's magnetic field?

• The movement of tectonic plates

• The spinning of the outer core

• The rotation of the Earth

• The spinning of the inner core

What is the biosphere composed of?

• All gases in the atmosphere

• All living things on Earth

• All water bodies on Earth

• All rocks and minerals

Which sphere does a glacier belong to?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

Tags

NGSS.MS-ESS2-4