Currents
Tides
Vocabulary
100
What causes surface currents?
Wind
100

What tide is caused when the sea level is at its lowest?

low tide

100

What do we call the highest point of a wave?

Crest

200

Surface currents merge and flow in great loops between the continents called

Gyres

200

What do we call it when the sea level is at its highest

High tide

200

What is the term for a giant wave caused by an underwater volcano or earthquake?

Tsunami

300

One of the strongest and warmest currents in the ocean (Hint: Starts in Mexico)

The Gulf stream

300

Tides are caused by the gravitational pull of what?

The moon

300

The bottom of the ocean is called the _____ ______.

ocean floor
400

Ocean currents can be compared to what body of water? (rivers, lakes, or streams?)

rivers

400

During a tide, the water is being pulled towards the _________ of the Earth facing the moon.

side

400

The deepest parts of the ocean are known as ______. (Think about the Mariana)

trenches

500

Currents flow around what piece of land? (Hint: theres 7 of them)

Continents

500
How many tides happen a day?

2

500

Places where the water is higher above the surface of the ocean (Hint: You can surf on these) 

Waves