Oceanography Unit Review

Oceans have different animals than lakes because...

• Oceans have salty water
• Oceans have sand
• Oceans have waves
• Oceans are larger

Which of the following increases as you go deeper into the ocean?

• How fresh the water is
• Pressure
• Temperature
• The number of plants

Which motion of the ocean travels in large, circular motions.

• Waves
• Tides
• Currents

______________________ is a large, warm current that affects weather on the east coast.

• Gulf Stream
• California Current
• Labrador Current
• Tidal Wave

The ocean floor...

• Is a completely flat bed of sand
• Is covered in mountains, trenches, and plains
• Covers less area than land
• Is the same depth all over

What causes tides?

• Salinity
• Wind
• The sun
• The moon's gravity

Microscopic organisms that float freely in the ocean are called...?

• Plankton
• Nekton
• Benthos

______________ begins at the shoreline and moves into the ocean at a gentle downward slope.

• Continental Shelf
• Continental Slope
• Continental Edge
• Continental Rise

How much of the Earth is covered in water?

• 30%
• 50%
• 65%
• 70%

All food chains must begin with a...?

• Consumer
• Producer
• Decomposer
• Scavenger