U1-L1: Circulation in Earth's Atmosphere

What causes wind to blow?

• The rotation of the Earth

• Pressure differences in the atmosphere

• The moon's gravitational pull

• Ocean currents

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

What role does the sun play in the formation of wind?

• It cools the Earth's surface

• It creates pressure differences by warming the air and Earth's surface

• It causes the Earth to rotate

• It pulls the air towards the poles

Tags

NGSS.MS-ESS2-6

What does density refer to in a material?

• The color of the material

• The mass per unit volume of a material

• The temperature of the material

• The shape of the material

What happens to the density of a material if its particles are packed closely?

• Density decreases

• Density remains the same

• Density increases

• Density becomes zero

How does temperature affect the density of air particles?

• Higher temperature makes air more dense

• Lower temperature makes air less dense

• Lower temperature makes air more dense

• Temperature has no effect on air density

Tags

NGSS.MS-PS1-4

What happens to cold air because it is denser and heavier than the surrounding air?

• It rises

• It sinks

• It stays in place

• It evaporates

Tags

NGSS.MS-ESS2-5

What is the horizontal movement of air called when cold air reaches the ground and spreads out?

• Breeze

• Wind

• Cyclone

• Storm

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

What is the movement of matter due to different densities called?

• Conduction

• Radiation

• Convection

• Evaporation

Tags

NGSS.MS-ESS2-6

What happens to cool, dense air when it sinks to Earth's surface?

• It evaporates

• It spreads out and causes warm air to rise

• It disappears

• It becomes warmer

Tags

NGSS.MS-ESS2-5

What happens to warm air as it moves upward?

• It becomes less dense and rises indefinitely

• It cools, becomes more dense, and sinks back

• It stays warm and remains at the top

• It evaporates into the atmosphere

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5