TAKE TWO SIMILAR TRANSPARENT GLASS BOTTLES HAVING WIDE MOUTHS PUT A FEW CRYSTAL OF POTASSIUM PERMANGANATE OR POUR A FEW DROPS OF INK IN ONE BOTTLE WITH HOT WATER . FILL THE OTHER BOTTLE WITH COLD WATER . COVER THE BOTTLE COLD WATER WITH A THICK PIECE OF PAPER SUCH AS POSTCARD . PRESS THE POSTCARD FIRMLY WITH ONE HAND AND HOLD THE WATER BOTTLE WITH OTHER HAND . INVERT THE BOTTLE AND PLACE IT ON THE TOP OF THE HOT WATER BOTTLE . HOLD BOTH THE WATER BOTTLES FIRMLY . ASK SOME OTHER PERSON TO PULL THE POSTCARD . OBSERVE WHAT HAPPEN . EXPLAIN.
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it will losses it colour
from this we could know that matter are made up of small pieces
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