1. ENERGY
ENERGY APPEARS IN MANY FORMS AND IS USED IN DIFFERENT WAYS
THE MAIN FORMS OF ENERGY ARE:
MECHANICAL ENERGY: PRODUCES MOVEMENT.
EXAMPLE. PUSH A SHOPPING TROLLEY
CHEMICAL ENERGY: STORED IN SOME SUBSTANCES.
EXAMPLE. PASTA OR BATTERIES
THERMAL ENERGY: ENERGY IN THE FORM OF HEAT.
EXAMPLE: OVEN, MICROWAVE.
LIGHT ENERGY:ENERGY IN THE FORM OF LIGHT. EXAMPLE: TORCHES.
ELECTRICAL ENERGY: ELECTRICITY. EXAMPLE: TELEVISION.
NUCLEAR ENERGY: IN NUCLEAR POWER STATIONS, NUCLEAR ENERGY IS TRANSFORMED INTO ELECTRICAL ENERGY.

2. ENERGY NEVER DISSAPEAR. IT CAN BE TRANSFORMED
FROM ONE TYPE OF ENERGY INTO ANOTHER.
EXAMPLES.
CARS TRANSFORM THE PETROL INTO MOVEMENT BY THE ENGINE.
FANS TRANSFORM ELECTRICAL ENERGY INTO THERMAL ENERGY
SOLAR PANELS TRANSFORM LIGHT ENERGY FROM THE SUN INTO ELECTRICITY

3. RENEWABLE ENERGY SOURCES
SOURCES OF ENERGY
RENEWABLE ENERGY SOURCES
HYDROELECTRIC ENERGY:
WE GET ENERGY FROM WATER THAT IS MOVING OR FALLING.
WIND ENERGY:
WE GET ENERGY FROM THE MOVEMENT OF THE AIR
SOLAR ENERGY:
WE GET ENERGY FROM THE SUN IN THE FORM OF LIGHT OR HEAT
BIOFUELS:
WE GET ENERGY FROM PLAN AND ANIMALS PRODUCTS.
SOLID(BIOMASS)
LIQUID(BIOLIQUID)
GAS(BIOGASES)

4. NON- RENEWABLE ENERGY SOURCES
SOURCES OF ENERGY
NON- RENEWABLE ENERGY SOURCES
PETROLEUM:
IT FORMS UNDERGROUND FROM DECAYED PLANTS AND ANIMALS.
IT IS USED AS FUEL( OIL, DIESEL, PETROL)
IT IS ALSO USED TO PRODUCE ELECTRICITY
COAL:
IT IS COMPOSED MAINLY OF CARBON.
IT IS FORMED UNDERGROUND FROM DECAYED PLANTS.
COAL IS USED AS FUEL AND TO PRODUCE ELECTRICITY
NATURAL GAS:
IT IS FORM UNDERGROUND FROM DECAYED ORGANISM.
IT IS USED AS FUEL AND TO PRODUCED ELECTRICITY
URANIUM:
IT IS FOUND IN ROCKS.
IT IS USED TO PRODUCE HEAT AND ELECTRICITY.

5. USING NON-RENEWABLE ENERGY SOURCES CAUSES TWO PROBLEMS.
HOW CAN WE PROTECT OUR PLANET?
THE SOURCES ARE LIMITED
POLLUTION( GASES CAUSE GLOBAL WARMING AND ACID RAIN)
USING NON-RENEWABLE ENERGY SOURCES CAUSES TWO PROBLEMS.
REDUCE
REUSE
RECYCLE
THE THREE Rs PROTECT THE ENVIRONMENT