The Water Planet

True or false: Oceans contain 97% of the water found on Earth.

• True

• False

Tags

NGSS.5-ESS2-2

True or false: Oceans cover 71% of Earth's surface.

• True

• False

True or false: The Earth's major oceans are isolated from each other by landmasses.

• True

• False

True or false: Presently, average global sea level is rising approximately 3 cm per year.

• True

• False

Tags

NGSS.MS-ESS2-4

What is the thermocline?

• The level of the oceans’ surfaces

• An ocean layer that is cold and dark with temperatures near freezing

• An ocean layer that is relatively warm, sunlit, and approximately 100 m thick

• A transitional ocean layer which is characterized by rapidly decreasing temperatures with depth

Tags

NGSS.MS-ESS2-6

Which of the following are the most prevalent ions in seawater?

• magnesium and chloride

• potassium and chloride

• sodium and chloride

• sodium and sulfate

Tags

NGSS.MS-PS1-1

Of the areas listed below, which generally has the lowest ocean salinity?

• polar regions

• subtropical regions

• temperate regions

• tropical regions

True or false: Photosynthesis can occur up to a depth of 200 m.

• True

• False

Tags

NGSS.MS-LS1-6

True or false: Saltwater is always denser than freshwater, regardless of temperature.

• True

• False

Tags

NGSS.MS-PS1-2

True or false: The North Atlantic Deep Water (NADW) flows under the Antarctic Bottom Water (AABW).

• True

• False

Tags

NGSS.MS-ESS2-6