Convection Currents

As air masses warm , they become less dense.

• Low pressure

• High pressure

Answer explanation

As air masses warm, they become less dense, leading to a decrease in pressure. This results in low pressure areas, as warm air rises and creates a vacuum that draws in surrounding air.

Tags

NGSS.MS-ESS2-5

As air masses cool, they become denser and sink toward the Earth's surface.

• High pressure

• Low pressure

Answer explanation

As air masses cool, they become denser and sink, leading to an increase in pressure at the surface. This results in high pressure areas, making 'High pressure' the correct answer.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Sea breeze happens when it is sun'y

• True

• False

Answer explanation

Sea breeze occurs when the land heats up faster than the sea during sunny conditions, causing cooler air from the sea to move inland. Therefore, the statement is true.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Land breeze happens when it is night

• True

• False

Answer explanation

Land breeze occurs at night when the land cools faster than the sea, causing air to move from the land to the sea. Therefore, the statement is True.

Tags

NGSS.MS-ESS2-5

Sea breeze on land is cold and sea is hot.

• False

• True

Answer explanation

The statement is false because sea breezes occur when cooler air from the sea moves inland, replacing the warmer air over the land. Thus, the sea is cooler than the land during the day.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Land breeze's land is cold and sea is hot.

• True

• False

Answer explanation

A land breeze occurs when the land cools down faster than the sea at night, making the land colder and the sea relatively warmer. Therefore, the statement that land is cold and sea is hot is true.

Tags

NGSS.MS-ESS2-6

During the day, the land heats up faster than the sea.

• True

• False

Answer explanation

True. During the day, land heats up more quickly than water due to its lower specific heat capacity, leading to temperature differences between land and sea.

Tags

NGSS.MS-ESS2-6

At night, the sea retains heat longer than the land.

• True

• False

Answer explanation

True. The sea has a higher specific heat capacity than land, meaning it can store heat longer. Therefore, at night, the sea retains heat longer than the land.

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-4

NGSS.MS-PS3-5