Sunday, May 30, 2010
SCIENCE PROJECT 1
ELECTRICITY PRODUCING FROM LEMON!!! -
MATERIALS - A LEMON,A PENNY OR COPPER METAL,A GALVANIZED NAIL OR ZINC METAL,COPPER WIRE,A FLASHLIGHT BULB.
INSTRUCTIONS - 1.ROLL THE LEMON ON A TABLE WITH SOME GENTLE PRESSURE TO MASH UP THE INSIDE OF THE LEMON WITHOUT BREAKING IT.
2.STICK THE PENNY AND THE NAIL INTO THE LEMON,MAKING SURE THAT THEY DO NOT TOUCH.
3.AT THESE POINT,STICK OUT YOUR TONGUE AND TOUCH IT TO THE PENNY AND THE NAIL AT THE SAME TIME.
4.WITH ALLIGATOR CLIPS,ATTACH A PIECE OF COPPER WIRE TO THE PENNY AND ANOTHER PIECE OF COPPER WIRE TO THE NAIL.
5.CAREFULLY TOUCH THE BOTH WIRES TO A SMALL FLASHLIGHT BULB.
NOTIFICATIONS - 1.WHEN YOU TOUCH THE YOUR TONGUE TO THE PENNY AND THE NAIL,YOU SHOULD EEL A SMALL TINGLE.
2.WHEN YOU TOUCH THE WIRES TO THE FLASHLIGHT BULB,IT SHOULD LIGHT UP!!!
WHAT'S HAPPENING? - AN ELECTRIC CURRENT IS CREATED WHEN ELECTRONS FLOW FROM ONE ELECTRODE TO ANOTHER THROUGH A CONDUCTOR.IN THIS PROJECT,THE PENNY AND THE NAIL BOTH WORKS AS ELECTRODES.THE COPPER WIRE CONNECTING EVERYTHING IS A CONDUCTOR.THE LEMON ACTS TO FINISH THE CIRCUIT WHILE KEEPING THE TWO ELECTRODES APART.ACTUALLY THE JUICE INSIDE THE LEMON ACTS AS THE CONDUCTING FLUID,KNOWN AS THE ELECTROLYTE.WHEN YOU PUT THE CIRCUIT TOGETHER,YOU ACTUALLY START A CHEMICAL REACTION IN WHICH ONE OF THE ELECTRODES LOSES ELECTRONS WHILE THE OTHER ONE GAINS ELECTRONS.THAT MAKES THE CURRENT,WHICH LIGHTS UP THE BULB.
TRY YOUR SELF - YOU CAN USE OTHER FRUITS AND VEGETABLES LIKE POTATOES AND ORANGES CAUSE THEY HAVE ACIDS IN THEM.YOU CAN ALSO TRY OTHER FOODS LIKE HARD BOILED EGGS ,BREAD,OR GREEN PEPPERS.SEE IF THEY WORK.
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it's a very good project.
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