Convection Currents Lesson

All energy on earth begins

• with the heat produced by pressure inside the earth
• photosynthesis by producers
• with the sun
• with the magma inside the earth

Which one heats and cools fastest?

• land
• sea
• both are the same rate
• air

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

• conduction current
• radiation
• condition current
• convection current

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation 

In convection, WARM air

• Rises
• Sinks

In convection, COOL air

• Rises
• Sinks

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Which is true about the way air flows?

• from high pressure to low pressure
• from cold air to hot air
• from low pressure to high pressure
• from top to bottom only

Uneven heating of Earth's surface creates?

• Global Warming
• Convection Currents
• Global Winds
• Seasons