HMH Science

What is the water cycle?

• continuous movement of water between the atmosphere, the land, the oceans, and living things,

• is condensed water vapor that is suspended in air

• the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

• any form of water that falls to Earth from clouds.

Tags

NGSS.MS-ESS2-4

Which statement best explains why weather systems usually move from west to east across the United States?

• Fronts move from west to east.

• The jet stream moves from west to east.

• Pressure systems form over the Rocky Mountains and move east.

• Weather systems originate over the pacific Ocean and move east.

Tags

NGSS.MS-ESS2-6

What is Weather?

• the condition of Earth's atmosphere at a certain time and place.

• another factor used in weather reporting

• amount of water vapor in the air.

• air that moves horizontally, or parallel

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is Temperature?

• measure of how hot or cold something is

• temperaure at which more condensation than evaporation occurs.

• the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.

• amount of water vapor in the air

Tags

NGSS.MS-PS1-4

Low-pressure systems bring stormy weather, and high pressure systems bring dry, clear weather

• True

• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

In unsaturated air, more water evaporates into the air than condenses back into the water

• True

• False

Tags

NGSS.MS-ESS2-4

What happens in a low-pressure system

• Air rises and cools

• sinks and warms

• I don't Know

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

An air mass is a large area of air that has the same

• temperature and humidity 

• density and temperature

• volume and humidity

• area and temperature

Tags

NGSS.MS-ESS2-5

If the air is coming from the desert, what will it feel like?

• hot and dry

• hot a moist

• cold and dry

• cold and moist

Tags

NGSS.MS-ESS2-5

An air mass usually brings the weather of ...

• its destination

• its source location

• its path of movement

• an undetermined source

Tags

NGSS.MS-ESS2-5