ocean currents

Hurricanes and typhoons are well-organized, rotating storms of low pressure that form in open oceans. These storms can contain very high winds and can raise the local tide more than 5 meters as they come onto land. Hurricanes and typhoons are examples of –

• the ocean getting energy from Earth’s rotation.

• energy stored in the ocean being released.

• convection currents in columns of saltwater.

• ocean currents creating heat from friction.

Tags

NGSS.MS-ESS2-6

heat transfer from rising, hotter, less dense fluids and falling, cooler, denser fluids

• rotation

• convection

• convection current

• Coriolis Effect

Tags

NGSS.MS-ESS2-5

Temperature changes occurring in oceans tend to be smaller than those on land in the same amount of time.

• True

• False - they tend to be larger

• from the sea toward the land

• straight up above the sea

• from the land toward the sea

• straight down over the land

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How is climate different from weather?

• Climate is constantly changing, whereas weather changes slowly over time.

• Climate influences people's daily activities, whereas weather influences people's seasonal activities.

• Climate is based on observations made for a region over several years, whereas weather is based on day-to-day observations made for a region.

• Climate refers to the atmospheric conditions on a given date, whereas weather refers to the atmospheric conditions during a given season.

One of the characteristics of ocean water that causes ocean currents is salinity. Differences in salinity can generate movement in the ocean because the amount of dissolved salt in ocean water correlates to -

• its ability to conduct electricity

• the latitude where it is found.

• the density of the water.

• how quickly it evaporates.

Tags

NGSS.MS-ESS2-6

the amount of matter in a given space or volume

• rotation

• convection

• salinity

• density

controlled by both temperature and salinity

• thermohaline

• salinity

• density

• convection

Differences in water temperature in the ocean create movement because –

• warm water is pulled more by gravity than cold water.

• bodies of water at different temperatures have different densities.

• as water heats up, the atoms of water move faster.

• warm and cold water mix and reach the same temperature.

Tags

NGSS.MS-ESS2-6

• It makes the air temperature warmer and the air more humid.

• It makes the air temperature cooler and cooler and the winds stronger.

• It makes the air less humid and brings less rain to the area.

• It makes the winds stronger and brings less rain to the area.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6