All About Convection
Term that describes the circulation of air or water
Convection Current
This symbol represents a cold front...
A line with triangles
Transfer of heat through a fluid
Convection
What is the feeder band made of?
Thunderstorms
What is the middle of a hurricane called?
Eye
When molecules heat up...
They vibrate more, get further apart and less dense
This symbol represents warm fronts...
A line with semi-circles
Provides energy to drive convection
Sun (Direct Rays)
Storms with wind speeds under 35 mph...
Tropical Depression
What causes air pressure?
Weight of air pushing down.
Which movements cause convection currents in air?
Hot air rises, cold air sinks
This symbol represents a pressure center...
Two circles
What causes global winds to blow?
Uneven heating of Earth by Sun
Storms over 35 mph wind speeds but under 74 mph...
Tropical Storm
The constant process of water changing forms as it moves on, above, and in the Earth.
Water Cycle
Why do heated molecules rise?
They are less dense than the molecules around them.
Fair conditions and sunny weather are caused by...
High Pressure System
What causes winds to curve away from Equator?
Spinning of Earth (Coriolis Effect)
In what direction does heat move?
From warmer to cooler
Gases absorbing solar energy resulting in a temperature range that can support life.
Greenhouse Effect
What are some things caused by convection currents?
Breezes, Ocean Currents, Winds
Heavy thunderstorms and windy weather...
Low Pressure Systems
What role does ocean play in forming hurricanes?
What absorbs and stores heat, which evaporates to form clouds, tropical storms, then hurricanes.
Why do tornadoes form in Tornado Alley than any other place on Earth?
Cool dry air from the North meets up with moist air from the South, causing tornadoes to form.
A region in which yearly patterns of temperature, rainfall, and the amount of sunlight are similar throughout.
Climate Zone