ATMOSPHERE

BY: Alexis A- Sweizy Carr

THE LAYERS Thermosphere- The uppermost

atmospheric layer. Mesosphere- The coldest layer of the

atmosphere. Stratosphere- The layer above the

troposphere has very thin air and contains little moisture.

Troposphere- Lies next to the earths surface. It is the lowest layer of the atmosphere and also is the densest atmospheric layer.

VOCAB Air pressure- air pressure is the measure

of the force with which the air molecules push on a surface.

Altitude- altitude is the height of an object above the earth’s surface.

Ozone- is a molecule that is made up of three oxygen atoms.

The earth’s heating process’ in which the gases in the atmosphere trap thermal energy.

RADIATION Radiation is the transfer of energy as

electromagnetic waves.

METHODS FOR TRANSFERRING ENERGY1. Conduction – is the transfer of

internal energy from one molecule to anotherduring molecular collisions.

Faster moving, high energy molecule

Slower moving, low energy molecule

METHODS FOR TRANSFERRING ENERGY (CONT.) Convection- is the transfer of thermal

energy by the circulation or movement of a liquid or gas.

GLOBAL WARMING

TYPES OF WINDS Trade winds are winds that blow from 30

latitude to the equator.

Westerlies are wind belts that are found in both the northern and southern hemispheres between 30 and 60 latitude

Polar easterlies are wind belts that extend from the poles

Jet streams are narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere.

POLLUTANTS There are two main types of pollutants.

Primary pollutants are pollutants that are put directly into the air by human or natural activity.

Secondary pollutants are pollutants that form from chemical reactions that occur when primary pollutants come in contact with other primary pollutants or with naturally occurring substances, such as water vapor.

Acid precipitation contains acids from air pollution.