|
|
| Engineering: Energy Sources |
|
batteries
|
storage container for electricity
|
|
|
charge
|
to load or fill
|
|
|
cheap
|
costing very little; inexpensive
|
|
|
clean
|
free of dirt, dust, or soil
|
|
|
dirty
|
unclean
|
|
|
efficient
|
productive; economical
|
|
|
electricity
|
flow of energy used as a power source
|
|
|
enviornment
|
the air, land, and water that people, plants, and things live in
|
|
|
expensive
|
costly; high-priced
|
|
|
gasoline
|
a liquid produced from petroleum, used as an engine fuel
|
|
|
loud
|
having an intense sound; noisy
|
|
|
natural gas
|
gas which is found underground or under the sea
|
|
|
oil
|
petroleum
|
|
|
quiet
|
without noise; silent
|
|
|
solar panel
|
power is obtained from the sun's light and heat
|
|
|
source
|
beginning
|
|
|
sun
|
the star around which the Earth and other planets revolve and draw light, heat, and energy
|