Earth's Oceans Review

T or F: Salinity tells you how cold something is.

• True

• False

Answer explanation

It tells you how salty it is.

The flat land that makes up most of the ocean floor is called what?

• Continental shelf

• Coral reef

• Abyssal plain

• Hydrothermal vent

Water moving up and down is called a ________.

• Wave

• Current

• Tide

• Coral reef

The edge of the continent, gradually sloping downward is called the continental _________.

• Shelf

• Slope

• Rise

• Plain

Answer explanation

The shelf is the first thing you come to when you wade into the ocean, then the slope, and then the rise.

T or F: The Earth has four major oceans.

• True

• False

Answer explanation

There are five :)

What type of weather does the Gulf Stream carry with it?

• Very cold

• Rainy and stormy

• Hurricanes

• Warm

What effect does wind have on ocean water?

• It causes waves to form.

• It calms waves down.

Why is it so cold in the deep ocean?

• There aren't any currents.

• Sunlight doesn't reach down there.

• The ocean bottom cools the water down.

• The pressure makes the water colder.

T or F: A volcanic island forms from lava that builds up each time a volcano erupts.

• True

• False

Answer explanation

Which TWO of these things makes it hard for people to explore the deep ocean?

• High pressure

• Very cold temperatures

• Scary creatures

• Salty water