Ocean Water Chemistry

What is the most common salt found in ocean water?

• calcium carbonate

• potassium

• magnesium

• sodium chloride

Tags

NGSS.MS-PS1-1

Which three factors are most important in determining the composition of ocean water?

• temperature, salinity, and density

• volume, mass, and density

• mass, salinity, and density

• volume, temperature, and density

Which statement best explains the relationship between an area's geography and the temperature of its surface water?

• Areas at high latitudes have the warmest water because their days are the longest.

• Areas at high latitudes have the warmest water because they have the longest seasons.

• Areas at low latitudes have the warmest water because they receive the most direct sunlight.

• Areas at low latitudes have the warmest water because they have the least change in temperature throughout the year.

Which statement best describes how the temperature of the ocean's surface water varies?

• Areas at high latitudes have the coldest water.

• Areas with a low salinity have the coldest water.

• Areas close to the poles have the warmest water.

• Areas with a high density have the warmest water.

Tags

NGSS.MS-ESS2-6

What conditions would most likely cause a decrease in the salinity of ocean water?

• high rates of evaporation

• freezing of glaciers

• extremely hot weather

• a river flowing into the sea

What conditions would cause an increase in the salinity of ocean water?

• high rates of evaporation

• thawing of glaciers

• cold weather

• a river flowing into the sea

Tags

NGSS.MS-ESS2-4

Which statement best explains the relationship between an area's geography and the temperature of its surface water?

• Areas at high latitudes have the warmest water because their days are the longest.

• Areas at high latitudes have the warmest water because they have the longest seasons.

• Areas at low latitudes have the warmest water because they receive the most direct sunlight.

• Areas at low latitudes have the warmest water because they have the least change in temperature throughout the year.

Which statement best describes how the temperature of the ocean's surface water varies?

• Areas at high latitudes have the coldest water.

• Areas with a low salinity have the coldest water.

• Areas close to the poles have the warmest water.

• Areas with a high density have the warmest water.

Tags

NGSS.MS-ESS2-6

How do conditions change as the depth of the ocean water increases?

• temperature decreases and pressure increases

• temperature increases and pressure decreases

• temperature increases and pressure increases

• temperature decreases and pressure decreases

Tags

NGSS.MS-ESS2-6

Why are people not able to scuba dive to the deepest parts of the ocean?

• As you go deeper into the ocean, temperature decreases and pressure increases too much for a body to withstand.

• As you go deeper into the ocean, temperature increases and pressure increases too much for a body to withstand.

• As you go deeper into the ocean, temperature and pressure increase too much for a body to withstand.

• As you go deeper into the ocean, temperature and pressure decrease too much for a body to withstand.