Ocean Currents & Wind

A student models convection currents in a lab activity.

How are the convection currents in the student's model different from the convection currents in Earth's atmosphere and oceans?

• The warm air in Earth's atmosphere and the warm water in Earth's oceans sink instead of rise

• The heat source for Earth's atmosphere and oceans is the sun, which heats from above instead of below

• Convection cells in Earth's atmosphere and oceans flow in the same direction instead of opposite directions

• Cold air in Earth's atmosphere and cold water in Earth's oceans are less dense than warm air and warm water instead of being more dense

Tags

112.20.b.10.A

Winds cause surface currents and winds are created by the 

• Sun
• Moon
• Tides
• Coriolis Effect

Tags

112.20.b.10.A

The sun provides the energy necessary to drive convection within Earth's oceans.

• True

• False

Tags

112.20.b.10.A

Hot air ​ (a)   and cold air ​ (b)  

• rises
• sinks

Tags

112.20.b.10.A

​ (a)   water rises and ​ (b)   water sinks.

• Hot
• cold

Tags

112.20.b.10.A

The cycle that powers the ocean currents, weather, and tectonic plates it called

• conduction current
• radiation
• condition current
• convection current

Tags

112.20.b.10.A

Which is an example of convection?

• Touching a hot pot

• Gases rising and falling in the atmosphere

• Cooking a burger

Tags

112.20.b.10.A

Cold air is ____________ than warm air and ___________.

• more dense; sinks

• less dense; rises

• more dense; rises

• less dense; sinks

Tags

112.20.b.10.A

Warm air is ____________ than cold air and ___________.

• more dense; sinks

• less dense; rises

• more dense; rises

• less dense; sinks

Tags

112.20.b.10.A

The horizontal (side to side) movement of air along Earth's surface is called ____________.

• Air currents

• Wind

• Air Pressure

• Atmosphere

Tags

112.20.b.10.A