Oceans and Ocean Currents

How many oceans are there?

• three

• four

• five

• six

Which ocean is the world's largest ocean?

• Arctic Ocean

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

Which ocean encircles Antarctica?

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Southern Ocean

What causes convection currents that cause Deep ocean currents to move around the globe?

• Wind currents

• Earth's tilt

• Density differences

• Volcanoes

_____________ is the measure of how salty the ocean's water is. 

• Salinity

• Solution 

• Coral 

• Plankton 

Which process does NOT lead to a decrease in the salinity of water?

• runoff from land
• precipitation
• sea ice melting
• evaporation

Two types of water currents are (a)  

• local and global
• sea and land
• surface and deep
• warm and cold

The surface of the Earth is covered by ___ % salt water.

• 49

• 65

• 71

• 82

Tags

NGSS.HS-ESS2-5

Label the parts of the ocean floor.

a

b

c

d

e

trench

continental shelf

continental rise

continental slope

abyssal plain