### fluid | air:

Warm air
* Most warm air causes low pressure
* Most warm air holds moisture
* Some warm air causes rain.
* Some warm air holds vapor
  - water vapor
* absorbs more moisture than does cooler air.
* becomes less dense and rises while cold air becomes more dense and settles.
* begins to override the cold air at the surface.
* can absorb more water vapour than cold air
  - much more moisture than cold air
  - contain more water vapor than colder air
  - evaporate exponentially more water than can cold air
* can hold a lot more vapor than cold air can
  - larger quantities of water vapor than cold air
* can hold more moisture than can cold air
  - cool air
  - then cold air
* can hold more water as vapor than cold air
  - than cool air
* can hold more water vapor than cold air can
  - vapour without it turning into cloud
  - watervapor than cold air
* can hold much more water vapor than cold air
  - vapour before it becomes saturated and condensation occurs
  - therefore contain more water vapor than cool air without condensation
* carries the water vapor upward into the atmosphere.
* causes air molecules to spread farther apart and move faster
  - water to be lost from flowers faster than it can be absorbed by the stems
  - into contact
* expands, gets less dense, rises to the top of the troposphere where it cools and falls.
* fills more volume than an equal amount of cold air.
* flows at high speeds over the surface of skin.
* has a higher capacity to contain and evaporate water vapor than cold air
  - much greater potential for containing moisture than cold air
  - an ability to hold more moisture than cold air
  - higher kinetic energy and thus is more buoyant
* has more energy than cold air
  - moisture in it than cold air
* holds considerably more moisture than cool air
  - more moisture and cold air holds less
* holds more moisture than cold air, so low pressure often means stormy weather
* holds more water vapor than cool air
* is able to hold more water than cold air
  - associated with lower pressure, since warm air tends to expand and move upward
  - both lighter and less dense than cold air
* is capable of holding more water vapor than cold air
  - much more moisture than cool air
  - forced to rise over a mass of heavier cold air
  - less dense and has a lower barometric pressure than the cold air at high latitudes
* is less dense than cold air and rises
  - the cold air and light travels faster in thinner air
  - lifted and clouds can form if enough water vapor is present
* is lighter and less dense than cold air
* is lighter than cold air and normally rises
  - therefore rises
  - so it rises, causing cooler air to flow in beneath it
* is lighter than cool air because the molecules are vibrating quickly and are farther apart
  - air, so as the air heats up, it rises above the lamp
  - the same volume of cold air
  - lighter, per unit volume, than cool air, because as it warms up it expands
  - listed and gradually slides up and over cooler air at the earth's surface
  - said to have a low pressure
  - the type of air used to fog a mirror or a window
* makes water evaporate more quickly than cool air.
  - canadian air
* moving into an area of cold air is called a warm front.
* moving over a colder surface primary fog producer
  - cold land, by contrast, is stable and frequently produces low stratus cloud
* picks up moisture more readily, so air masses in low pressure areas are more humid.
* rides up and over colder air since it is less dense.
* rises above cold air by convection
  - at the equator, and cools
* rises because it is lighter and less dense than the cold air
  - weighs less than colder, heavier air
  - warm air is less dense than cold air
  - containing evaporated moisture
  - over the ocean, and cooler air flows in producing a land breeze
  - up into the atmosphere and becomes the vapor involved in condensation
* rises, causing a low pressure area and usually clouds as well
  - moves away from the equator, cools and sinks back towards earth
  - producing low pressure areas
  - so the water vapor is carried with it
* trapped between clothing layers is the key to keeping warm on even the coldest days.
* turns the water from rivers, lakes, and oceans into water vapor that rises into the air.
* wants to rise because it is warmer than the air around it at the same elevation.
+ Cloud:
  * Warm air holds more water vapor than cool air. So if warm air with lots of water inside cools, it can form a cloud.