Exploring Earth's Spheres and Convection

What is the hydrosphere primarily composed of?

• Water

• Air

• Living organisms

• Rock

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Explain how convection currents occur in the ocean.

• Due to the rotation of Earth

• Because of differences in water density

• From the gravitational pull of the moon

• As a result of wind patterns

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NGSS.MS-ESS2-6

What percentage of Earth's water is salt water?

• 50%

• 75%

• 97%

• 100%

Identify the sphere that includes all of Earth's water.

• Geosphere

• Atmosphere

• Hydrosphere

• Biosphere

Tags

NGSS.MS-ESS2-4

Describe the process of convection in the Earth's atmosphere.

• Movement of air due to temperature differences

• Rotation of Earth causing wind

• Gravitational pull affecting air

• Sun's heat directly warming the ground

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How does convection contribute to the transfer of energy in the Earth system?

• By direct contact between objects

• Through the flow of matter

• Via radiation from the sun

• By chemical reactions

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When water is warmer than air, the energy

• flows from the water to the air.

• flows from the air to the water.

• flows from the faucet.

• water and air do not transfer energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4