| A | B |
|---|
| CONDUCTION | transfer of heat energy through a material |
| CONVECTION | transfer of heat energy by molecules moving and colliding with one another |
| THERMAL RADIATION | transfer of heat energy a electromagnetic waves |
| GREENHOUSE EFFECT | the process of gases absorbing heat and radiating it back to earth |
| GLOBAL WARMING | an increase in average global temperatures |
| THE GREAT OCEAN CONVEYOR BELT | an ocean current system that moves water from warmer to colder and back again |
| THERMALHALINE CIRCULATION | circulation of water that depends on temperature and saltiness |
| ICE AGE | a period in earth's history when large sheets of ice covered much of the continents - we will have another in about 20,000 years |
| ULTRAVIOLET RADIATION | the type of radiation which can cause cancer |
| INFRARED RADIATION | a type of heat energy from the sun |
| CLIMATE | the weather conditions over a long period of time. |
| RADIATION BALANCE | the balance between incoming energy and outgoing energy from the sun |
| GREENHOUSE GASES | gases which absorb heat energy in the atmosphere |
| THERMAL ENERGY | heat energy |
| SPACE | where some thermal energy is reflected to |
| SUN | the source of all the Earth's thermal energy |
| OZONE LAYER | filters out harmful ultraviolet rays |
| Aurora Borealis | northern lights, caused by solar wind affecting the ionoshpere |
| IONOSPHERE | the layer of the atmosphere where the aurora borealis occurs |
| SALINITY | saltiness |
| DEFORESTATION | clearing of forests usually for farming |
| FOSSIL FUELS | coal, petroleum products like oil, gasoline, diesel |
| 20 PERCENT | amount of sun's energy absorbed by clouds and other gases |
| 50 PERCENT | amount of sun's energy absorbed by Earth's surface |
| 70 PERCENT | total amount of energy from the sun which is absorbed by the earth and greenhouse gases |
| SINKS | cool air and water do this |
| RISES | warm air and water do this |
| FROM WARM AREA TO COLD AREA | heat always moves this way |
