Science Topic Test Lesson 29

second-largest ocean

Atlantic Ocean

third-largest ocean

Indian Ocean

The oceans were formed when the earth cooled and water vapor condensed to create rain. True or False

True

The ocean's surface temperatures vary with time of year and a. latitude b. longitude c. seasons d. moon phases

a. latitude

Where would the temperature of the ocean probably be lowest? a. near the poles in winter b. near the equator c. near the poles in summer d. near the equator in winter

a. near the poles in winter

WHich of the following oceans lies between North America, South America, Europe and Africa? a. Pacific Ocean b. Atlantic Ocean c. Southern Ocean d. Arctic Ocean

b. Atlantic Ocean

The salinity of ocean water is due to high concentrations of: a. Potassium chloride b. Sodium chloride c. Sodium manganate d. Sulfur chloride

b. Sodium chloride

Which statement is true about the Earth's oceans? a. They are all getting larger due to the movement of tectonic plates b. They have changed over time c. They have not changed in 4 billion years d. They are all getting smaller due to the movement of tectonic plates

b. They have changed over time

The physical change of liquid water to vapor is called a. desalinization b. evaporation c. condensation d. precipitation

b. evaporation

Ocean water is most saline a. where rivers empty into the ocean b. in dense seawater c. near coastal areas with high rainfall d. in icebergs

b. in dense seawater

Why don't many rivers flow into the Pacific Ocean? a. it is too big b. it is bordered by mountains c. the salinity is too high d. it is too deep

b. it is bordered by mountains

The Pacific and Atlantic Oceans are separated into north and south halves by: a. North and South America b. the Equator c. the Prime Meridian d. currents

b. the Equator

What is the only freshwater part of an ocean? a. The Indian Ocean b. Deep water c. Icebergs d. El Nino

c. Icebergs

The measure of the amount of dissolved salt in a liquid sample is called a. the water cycle b. evaporation c. salinity d. a thermal exchange

c. salinity

The measure of the amount of dissolved salts in a given amount of liquid is called a. desalinization b. the water cycle c. salinity d. evaporation

c. salinity

The most abundant dissolved salt in ocean water is a. sodium saline b. sodium fluoride c. sodium chloride d. sodium chlorine

c. sodium chloride

water vapor changing to liquid water

condensation

The world's largest ocean is the a. Indian Ocean b. Arctic Ocean c. Atlantic Ocean d. Pacific Ocean

d. Pacific Ocean

What are the chemically or geologically distinct regions of the oceans called? a. Bays b. Currents c. The Coriolis effect d. Seas

d. Seas

The movement of water from ocean to the atmosphere to the land and back to the ocean is called a. water evaporation b. water condensation c. water precipitation d. the water cycle

d. the water cycle

falling rain or snow

precipitation

What causes the salinity of ocean water to decrease?

the melting of icebergs

the movement of water from ocean through the atmosphere and back

water cycle