Oceanography!

Which best describes the continental shelf?

• a flat underwater valley 
• a region of mountains in the deep ocean 
• a shallow area of sediment near the shore 
• a region with high water pressure 

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 land

Tags

NGSS.MS-ESS2-4

The ocean covers 50% of Earth's surface.

• True
• False

Where is the ocean deepest?

• ocean trench
• volcanic island
• abyssal plain 
• mid-ocean ridge

Plankton are microscopic single-celled oragnisms. 

• True
• False

Tags

NGSS.MS-LS1-1

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

• oxygen
• salt
• algae
• plants

As you go deeper in the ocean, the _______ decreases. 

• water
• salinity
• temperature
• water pressure 

What do the arrows represent in the picture?

• waves
• currents
• tides

Tags

NGSS.MS-ESS2-6

What causes the tides to change?

• rotation of the Earth

• tilt of Earth

• gravitational pull from the moon

• ocean currents

Tags

NGSS.MS-PS2-4

Upwelling is the process where warm, nutrient rich water from deep in the ocean rises to the surface.

• False
• True