Saltwater

Which of the following questions can best be answered by the data presented in the chart to the right?

• What are the types of sea water?

• How does sea water differ from freshwater?

• Which elements are included in the “other” category?

• Which two elements are the most abundant in seawater?

Ocean water differs from freshwater in that it has __________________________.

• Higher temperature

• Lower temperature

• Higher salinity

• Lower salinity

What is the most abundant salt found in ocean water?

• Calcium sulfate

• Potassium sulfate

• sodium chloride

• Magnesium chloride

Which two factors affect the density of ocean water?

• The amount of oxygen in the water and temperature

• The amount of oxygen in the water and salinity

• The temperature of the water and salinity

• The clarity and color of the water

The salts in the sea come from __________________

• weather and erosion of rocks

• acid rain.

• particles falling from space.

• organisms that live in the sea.

Tags

NGSS.MS-ESS2-1

Using the tide chart above, how often do high tides occur in most places?

• Two times a day

• Two times a month

• One time a day

• One time a month

Tags

NGSS.MS-ESS1-1

A large body of saltwater

• Ocean

• Estuary

• Coral reefs

• Aquatic

Estuaries vary in their amounts of salinity. True or False?

• True

• False

Tags

NGSS.MS-LS2-4

What is the primary reason for the salinity of ocean water?

• Evaporation of water

• Presence of marine life

• Runoff from rivers

• Volcanic activity

Which process is responsible for the desalination of seawater?

• Distillation

• Filtration

• Sedimentation

• Chlorination

Tags

NGSS.MS-PS3-3