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16 Cards in this Set

  • Front
  • Back
what are wind and water used for?
to generate electricity
what do photovoliac rays need to work?
UV rays
solar cells are made of tiny layers of the element_____.
silicon
mixture of gasoline and alcohol
gasahol
water power-
dams making hydroelectricity
when simple hydrocarbons are burned they form?
sulfur
black surface absorbs energy from the sun and converts it to heat, covered with plastic panels or glass to keep in heat. water pumps through the pipes at the surface and heats
solar collector
energy from the sun
solar energy
solar cells, convert sunlight directly into electricity
photovoliac cells
list 7 hydrocarbons and their uses
methane- most abundant-natural gas
2.ethane-
3.propane-home heating in a bottle
4.butane-
5.hexane-
6.heptane-
7.octane-gasoline
passive can be used to heat _____.
water
71% of coal in the u.s. is used on?
electric power
what can solar energy be used to do?
heat buildings and produce electricity
61% of oil used in the u.s. is used on______.
transportation
solar energy can only be used if you complete these 3 steps
collection, conversion, and storage
_____ formed from dead plants and animals millions of years ago
fossil fuels