Convection, Convection, Convection,

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Warm air/water always

Rises

Which is denser? Cold air or warm air?

Cold air

Convection currents in Earth's Mantle power plate tectonics

================================================

Wind

Air in Motion -Caused by the uneven heating of Earth's atmosphere

What does convection occur in?

Air,gases,liquids

Why is the air by the ceiling warmest

Because warm air rises and is light.

How can a glass of water reach thermal equilibrium?

By stirring a glass of water until the glass is equally heated

Cold air is more dense

Cold air sinks

Explain the cycle of convection

Cold air sinks pushing warm air up. Warm air soon cools pushing what was once cold air and now is warm air up.

At the eqautor

Colder warms and rises towards the surface of the ocean. That water is replaced by cold water, which eventually warms up and rises. Repeat J

Heat transfer through liquids, air, or a solid rock is known as

Convection

What force could be strong to move an entire tectonic plate?

Convection of course/ Convection currents in Earth's mantle move tectonic plates around, causing CONTINENTAL DRIFT

Convection

Heat transferred through liquids and gases, causing them to move. Air/water heats up and rises, and cold air/water rushes in and takes its place. Cold air/water then heats up and rises, and more cold air/water rushes in and takes its place. This process forms moving currents of air/water, called Convection Currents.

The Great Conveyor Belt

Is a complex system of ocean currents powered by convection. It influences climate all over the planet.

Warm air rises because

It is light and pushed up by cold air

What is thermal equilibrium?

It is when a a liquid is equally heated.

Sea Breeze

Moves From **Sea** to Land

Land Breeze

Moves form **Land** to sea

The gulf stream and VA

Ocean currents traveling away from the equator are warm water currents. The Gulf Stream is an ocean current that carries warm water from the southern tip of Florida along the eastern coast of the United States.

Cold air/water always

Sinks

How do you think convection applys to air conditioners being on ceilings?

So the cold air flows to the room sinking to the ground creating a convection current

Convection powers extreme weather

Strong convection cycles cause thunderstorms, tornadoes, and hurricanes

Hot gases and liquids are less dense so they float upward when surrounded by gases and liquids of medium temperature

That's how hot air balloons float : the hot air in them is less dense than the air around them

Density

The ammount of matter packed together in a given space

Convection is

The cycle of cool air and warm air rising and sinking

A convection current is

The flow of hot and cold regions through a fluid.

Heated molecules move around so much that they sometimes jump right out of their container.

Therefore , the hot fluid becomes less dense or "lighter"

Chilled molecules move less and don't take up as much space .

Therefore, the material they are in becomes more dense or heavier

How do thunderstorms form ?

They form when the water from the ground comes up into the air and form cumulus clouds . Then the cumulus clouds with hold lots of moisture and even electricity

How is thermal energy transferred through liquids and gases ?

Through convection ,it moves from high thermal energy to areas of low thermal energy

When water particles heat up they

Vibrate faster and faster.

At the poles

Water cools down and sinks towards the ocean floor. That water is replaced by warmer water, which then cools and sinks. Repeat :)

Convection At Equator And Poles

Water heats up at the equator and rises to the Poles. At the Poles, water cools down and sinks back to the Equator. Repeat :)

How might convection happen in a pot of boiling water?

Water that is heated rises and cold water sits at bottom waiting to be heated.

How are liquids and gases affected by heat ?

When heat energy is added to liquids and gases , the particles begin to move quickly .

In a convection

ahot, less dense fluid rises up, and a cold, more dense fluid sinks, forming a convection cell.

Convection currents

cause wind

3 ways heat energy is transferred

conduction, convection ,radiation

Cold Water

cools the air above it so land areas near cool water currents have cool temperatures.

Occurs when ?

heat is circulated in liquids

Radiation

heat traveling through empty space

Convection

how heat is transferred between fluids (liquids and gases )

Convection currents

in your vegetable soup

Convection

is a process by which heat is transferred by movement of a heated fluid ( a liquid or gas)

Heat

is energy that flows from one object to another

Action

movement; something that happens

Atom

smallest unit of an element

Energy

the ability to do work or cause change between forms

Example of convection

the air around us

What happens when two objects are placed together ?

the object with higher temperature cools while the cooler object becomes warmer until they both reach the same temperature

Energy transfer

the transfer of energy from one organism to another or object to object

Conduction

thermal energy transferred from one object to the next or from molecule to molecules ;direct contact

Boil

to change from a state of liquids to a sate of gases because of heat energy

Distribute

to hand out or spread evenly

absorb

to take in matter of an object

Warm Water

warms the air above it so land areas near warm water currents have warm temperatures.

Example of convection

water boiling on the stove

Thermal equilibrium

when substances are at thermal equilibrium means they have reached the same temperature

Cold air sinks because

It is denser.

Can convection happen in water?

Yes

Does convection occur in air?

Yes

Does convection happen everywhere?

Yes it even occurs inside and out side.

Is convection useful.

Yes it provides us with cool bair


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