Oceans

The arrows on the map represent ?

• Size of waves

• Water density

• Ocean currents

• Time between tides

Tags

NGSS.MS-ESS2-6

Which location is likely to have the greatest water pressure, the coldest temperatures, the smallest number of living organisms ?

• 1

• 2

• 3

• 4

Many species of ocean organisms live in coral reefs. The map shows that most coral reefs are found near the equator. What does the location of coral reefs suggest about coral organisms ?

• Corals need warm seawater to survive.

• Corals mostly live around volcanic islands.

• Ocean currents keep corals from migrating.

• Most ocean waters are to deep for corals.

The main difference between ocean water and lake water is that ocean water contains--

• oxygen

• salt

• algae

• plants

Algae in the ocean provides much of Earth's--

• oxygen

• hydrogen

• salt

• carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The ocean floor--

• is always a flat bed of sand

• has mountains, plains, and ridges like land surfaces

• is covered by the same amount of water everywhere

• covers less area than the land

Tags

NGSS.MS-ESS2-4

Algae and other producers need lots of sunlight. Most ocean algae would be found in water--

• on the abyssal plain

• in the oceanic trench

• above the continental shelf

• beside the continental slope

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which of these increases as a submarine dives deeper into the ocean ?

• The number of plants in the water

• The freshness of the water

• The water temperature

• The water pressure

The salinity of the Mediterranean Sea is greater than that of the Atlantic Ocean. This means that, compared to the Atlantic Ocean, the Mediterranean Sea is--

• wider

• deeper

• saltier

• cooler

The most important reason that lakes and oceans have different types of animal life is that oceans have--

• sandy shores and bottoms

• water with more salt

• large waves at the edges

• a much larger surface area

Tags

NGSS.MS-ESS2-6