Understanding Ocean Currents and Water Density

Which direction does warmer water from the equator generally move?

• Toward the poles

• Toward the equator

• In a circular motion

• Stays in place.

Tags

NGSS.MS-ESS2-6

How does high salinity affect ocean water density?

• Increases density

• Decreases density

• No effect

• Makes it evaporate.

What causes ocean water to rise?

• Low density

• High density

• High salinity

• Low temperature

Which ocean current is associated with sinking cold, salty water?

• Arctic Ocean

• Indian Ocean

• Pacific Ocean

• Atlantic Ocean

Tags

NGSS.MS-ESS2-6

What happens to ocean water when it is less dense?

• It rises

• It sinks

• It freezes

• It evaporates

What is the overall trend of ocean motion?

• Warmer water moves toward the poles

• Water stays in place

• Water moves in a circular motion.

Tags

NGSS.MS-ESS2-6

What happens to water density when salinity is high and temperature is low?

• A) Density increases

• B) Density decreases

• C) No effect

• D) Water evaporates

Which of the following is a result of more heat from the sun in the tropics?

• Temperature increases

• Temperature decreases

• No effect

• Water freezes

Tags

NGSS.MS-ESS2-6

What is the main reason coastal areas experience minimal temperature changes during the day?

• The ocean has a high specific heat.

• The land heats up faster.

• The ocean has low specific heat.

• The land cools down faster.

Tags

NGSS.MS-PS3-4

Which of the following statements is true about inland areas?

• They have a high specific heat.

• They experience minimal temperature changes.

• They heat up and cool down faster than water.

Tags

NGSS.MS-PS1-4