| A | B |
|---|
| Venus | planet that has a thick atmosphere with lots of carbon dioxide that traps heat close to the planet |
| Mars | planet that has virtually no atmosphere. Very little global warming takes place here |
| Earth | planet that has an atmosphere that supports life; made up of 80% nitrogen and 20% oxygen. |
| Goldilocks Theory | explains why Venus is too hot, Mars is too cold, and Earth is just right |
| climate change | is partially caused by the burning of fossil fuels |
| global warming | process whereby greenhouse gases trap heat from the sun |
| nuclear fission | process whereby atoms are split to generate steam to turn turbine fan blades to produce electricity |
| bio-mass burning | burns methane to create steam to turn turbine fan blades to produce electricity |
| wind power | uses wind to directly turn turbine blades to generate electricity |
| hydroelectric power | uses running water to directly spin turbine blades |
| tidal wave action | uses waves to directly spin turbine blades |
| fossil fuel burning | burns coal to produce steam to turn turbine blades. Contributes to global warming |
| solar power | uses the photons from the sun's rays to combine with electrons of a panel to generate and collect electricity in a battery |
| electric generator | consists of fan blades that spin to cause swinging of electrons onto a metal wire. Creates an electric current that is stored to provide electricity |
| turbine | part of electric generator that contains fan blades |
| gasoline | fuel used to power generators when coal is unavailable (as a backup) |
| fossil fuel burning, nuclear fisssion, bio-mass burning | 3 types of fuel that create steam to spin turbines |
| hydroelectric power, wave power, wind power | 3 types of alternative electricity generation that spin turbine blades directly |
