ENERGY SOURCES ARE CONSIDERED NONRENEWABLE IF THEY CANNOT BE REPLENISHED (MADE AGAIN) IN A SHORT PERIOD OF TIME. ON THE OTHER HAND, RENEWABLE ENERGY SOURCES SUCH AS SOLAR AND IND CAN BE REPLENISHED NATURALLY.
FOSSIL FUELS OR NON-RENEWABLE NATURAL RESOURCES - FOSSIL FUELS ALL COME FROM UNDERGROUND; INSIDE THE EARTH'S CRUST. PEOPLE BURN ANY OF THESE FUELS, COAL, OIL OR GAS, TO MAKE ELECTRICITY IN POWER STATIONS. THE BIGGEST GUZZLERS OF ENERGY FROM BURNING FOSSIL FUELS ARE:
A. KEEPING HOMES AND OFFICES WARM IN WINTER AND COOL IN SUMMER
B. TRANSPORT: CARS, BUSES, SOME TRAINS, SHIPS, AIRCRAFT
ALTERNATIVE ENERGY RESOURCES -
HOW IS SOLAR ENERGY HARNESSED? SOLAR ENERGY CAN BE USED TO GENERATE ELECTRICITY IN PHOTOVOLTAIC (PV) CELLS. A PV CELL MAY POWER YOUR CALCULATOR. PV CELLS ARE MADE OF
SEMICONDUCTORS, SIMILAR TO THOSE USED TO MAKE COMPUTER CHIPS. THE SUN'S ENERGY CAN BE COLLECTED/HARNESSED ANYWHERE, BUT MORE CAN BE GATHERED IN AREAS ON OR NEAR THE EQUATOR. IT IS ADVANTAGEOUS THAT SOLAR ENERGY IS RENEWABLE, NON-POLLUTING AND RELATIVELY MAINTENANCE FREE.
FOSSILS ARE EVIDENCE OF ANCIENT LIFE FORMS OR ANCIENT HABITATS WHICH HAVE BEEN PRESERVED BY NATURAL PROCESSES. THEY CAN BE THE ACTUAL REMAINS OF A ONCE LIVING THING, SUCH AS BONES OR SEEDS, OR EVEN TRACES F PAST EVENTS SUCH AS DINOSAUR FOOTPRINTS, OR THE RIPPLE MARKS ON A PREHISTORIC SHORE.
FOSSIL ROCK ANTHEM...
YOU MAY FIND THE FOLLOWING WEBSITES USEFUL WHEN DOING YOUR RESEARCH FOR OUR IBOOK PROJECT:
HI ENERGY (FACT SHEETS)
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