| A | B |
|---|
| Earth receives ENERGY from | the SUN |
| 3 ways Energy from sun is TRANSFERRED thru atmosphere by | RADIATION, thermal CONDUCTION, and CONVECTION |
| radiation | the transfer of energy as electromagnetic WAVES |
| Energy from the sun is absorbed by | atmosphere, land and water |
| The energy from the sun is changed to | THERMal energy |
| thermal CONDUCTion | the transfer of energy as heat DIRECTLY TOUCHES a material |
| convection | the transfer of heat by CIRCulation or movement of a liquid or gas |
| thermal energy ALWAYS transfers | from warm to cold areas |
| convection current | CYCLE od warm air rising and cool air sinking that causes a circular movement of air |
| greenhouse effect | warming of Earth's SURFACE and LOWER atmosphere that occurs NATURALLY when water vapor, carbon dioxide, and other GASES ABSORB and RE-RADIATE thermal energy |
| How does the greenhouse effect warm the Earth? | It allows energy fron=m the SUN to enter the atmosphere, but prevents thermal energy from ESCAPING---TRAP |
| radiation balance | the balance between energy coming INto the atmosphere and energy going OUT |
| global WARMing | a gradual INCREASE in the average global TEMPERATURE |
| convection currents are caused | by differences in air DENSITY-- |
| greenhouse gas | a gas that absorbs thermal energy in the atmosphere |
| DIFFERENCE between greenhouse effect and Global warming | some think that INCREASED greenhouse gases are causing the planet to HEAT more and more and more The BALANCE is getting messed up! |
| Some causes of global warming MIGHT be | cutting down forests and more cars and factories |
| Date shows that the Earth's temperature | is getting WARMER over the last 100 years |
