Lesson 16.1 Composition and Structure of Earth's Oceans

__________ is the world's largest ocean.

• Pacific Ocean

• Atlantic Ocean

• Indian Ocean

• Southern Ocean

_______________ is the measure of the mass of dissolved solids in a mass of water.

• salinity

• seawater

• brackish

• sodium

___________ is the water from the sea or ocean that has an average salinity of 35 ppt.

• salinity

• seawater

• brackish

____________ is freshwater mixed with seawater.

• brackish

• salinity

• seawater

_____________ is the part of the ocean next to the continent.

• continental margin

• abyssal plains

• mid-ocean ridge

• ocean trenches

______________ are large, flat areas of the surface that extend across the deepest par of the ocean basins.

• abyssal plains

• continental margins

• mid-ocean ridges

Underwater mountains are called ______________.

• abyssal plains

• continental margins

• mid-ocean ridges.

Tags

NGSS.MS-ESS2-3

True or False. Oceans have an average depth of 4000 meters.

• True

• False

A famous submersible named ___________ set a deep ocean record by diving to the bottom of the Mariana Trench.

• Alvin

• Simon

• Theodore

• All of the Chipmunks!

The _________ zone receives the greatest amount of sunlight.

• surface

• middle

• deep

Tags

NGSS.MS-LS1-6