Exploring the Spheres of the Earth

The video tutorial explains the concept of Earth's spheres, which include the atmosphere, hydrosphere, lithosphere, and biosphere. Each sphere has unique characteristics and functions, such as the atmosphere's role in protecting life from UV rays and the hydrosphere's involvement in the water cycle. The lithosphere encompasses the Earth's crust and various landforms, while the biosphere includes all living organisms. These spheres interact to create ecosystems and cycle materials on Earth.

What shape is the Earth described as in the video?

• Triangular

• Flat

• Square

• Round like a ball

Which sphere of the Earth is composed of air?

• Hydrosphere

• Atmosphere

• Lithosphere

• Biosphere

What percentage of the Earth's atmosphere is nitrogen?

• 21%

• 50%

• 78%

• 99%

What does the hydrosphere include?

• Only solid water

• Only liquid water

• All states of water

• Only water vapor

Tags

NGSS.MS-ESS2-4

What percentage of Earth's water is fresh and drinkable?

• 97%

• 10%

• 3%

• 50%

What is the outermost layer of the lithosphere called?

• Crust

• Volcano

• Core

• Mantle

Which sphere includes mountains and valleys?

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

Tags

NGSS.MS-ESS2-2

What does the biosphere consist of?

• Only bacteria

• All living things

• Only animals

• Only plants

How do the spheres interact to support life on Earth?

• They only interact during natural disasters

• They interact to form ecosystems

• They interact to destroy ecosystems

• They do not interact

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What happens to plants and animals when they die?

• They float into the atmosphere

• They disappear

• They decompose and become soil

• They turn into water

Tags

NGSS.MS-LS2-3