Unit 5: Lesson 2: Water in Earth's Systems

The oceans hold almost all the water on Earth.

Which kind of water is found in the oceans?

• salt water

• pure water

• fresh water

• drinking water

What is the water like where a river meets the ocean?

• It is salty.

• It is fresh.

• It is polluted.

• It is slightly salty. (Brackish)

Tags

NGSS.MS-ESS2-4

The continent of Antarctica is nearly covered with glaciers. Which statement is true about glaciers?

• Glaciers are frozen salt water.

• Glaciers are frozen fresh water.

• Glaciers contain a majority of the water on Earth.

• Glaciers contain the smallest fraction of water on Earth.

Tags

NGSS.MS-ESS2-4

Which statement about fresh water is true?

• Most fresh water is located underground.

• Less than 1% of fresh water is surface water.

• A little less than half of fresh water is frozen.

• Groundwater makes up less than one-quarter of fresh water.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Around continents, there can be a relatively shallow area of ocean floor that extends many kilometers.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Abyssal plain

The steep area where the ocean rapidly gets deeper.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Abyssal plain

The lower part of the continental slope. It can reach 4,000 m (13,000 ft) below the ocean’s surface.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Abyssal plain

Long ridges of undersea mountains and volcanoes.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Abyssal plain

The relatively flat, deep, vast area of the ocean floor.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Abyssal plain

A deep, valley-like part of the ocean floor, often near the edge of an island chain or continent.

• Continental rise

• Continental shelf

• Mid-ocean ridge

• Continental slope

• Trench