Oceanography

What percentage of Earth's surface is covered by water?

• 45%

• 51%

• 71%

• 85%

Tags

NGSS.MS-ESS2-4

Which of the world's oceans is the largest and deepest?

• Arctic Ocean

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

What does sonar equipment measure?

• the density of ocean water

• the depth of the ocean floor

• the sound produced by ocean creatures

• the shape of the ocean surface

Tags

NGSS.MS-PS4-2

Which of the following areas is NOT one of the three main regions of the ocean floor?

• ocean floor

  basin

• continental margin

• continental

  rock

• mid-ocean

  ridge

Trenches form at sites where

• one plate descends beneath another

• erosion cuts into the continental shelf

• two plates diverge under the sea

• undersea volcanoes collapse

Tags

NGSS.MS-ESS2-3

What causes ocean surface currents?

• gravitational attraction

• friction between the ocean and wind on its surface

• ocean movements associated with earthquakes

• changes in water density

Tags

NGSS.MS-ESS2-6

What is the importance of upwelling?

• it brings warm water from the tropics to the poles

• it decreases winds along exposed coastlines

• it helps warm the North Atlantic gyre

• it brings dissolved nutrients to the ocean's surface

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Most ocean waves get their energy from

• the sun

• plate movement

• the moon's gravity

• the wind

Which of the following factors does NOT help determine the height, length, and period of a wave?

• wind speed

• fetch

• temperature

• how long the wind blows

What is the vertical distance between a trough and a crest?

• wave height

• wavelength

• wave speed

• wave period

Tags

NGSS.MS-PS4-1