Ocean

__________ affect the density of ocean water.

• Temperature and salinity

• Only salinity

• Only temperature

• Neither temperature nor salinity

Ocean water becomes denser as its temperature _______.

• decreases

• increases

• remains constant

• sharply increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Ocean water is denser than pure water.

• True

• False

Which of these are methods used by scientists to study the ocean floor?

• sonar

• sattelites

• underwater vessels

• drilling

______ uses sound waves to map the ocean floor.

• sonar

• drilling

• dredging

• w

Tags

NGSS.MS-PS4-2

_______ is the amount of dissolved salts that are present in water.

• Salinity

• Density

• Sediment

• Porosity

T/F: Salinity varies slightly from one location to another as a result of the water cycle and climate variations.

• True

• False

Tags

NGSS.MS-ESS2-6

Salinity increases in areas of high __________.

• evaporation

• transpiration

• condensation

• sublimation

Tags

NGSS.MS-ESS2-4

Scientists divide the ocean into three temperature layers based on depth:

• the surface layer

• the thermocline

• the deep zone.

• the atmosphere

The ______ of the water increases as its salinity increases.

• density

• flavor

• liquidity

• flow