classify the following changes in as many ways as possible: (a)growth of a tree (b) burning of paper (c) weathering of a rock (d) making ice cream from milk? answer in long
Answers
a) IT IS A IRREVERSIBLE CHANGE AS WELL AS PHYSICAL CHANGE. ONCE A TREE GROWS THEN IT CANT BE LIKE SMALL AS BEFORE. THIS CHANGES IT BODY AND HEIGHT THATS WHY IT IS A PHYSICAL CHANGE..
b) BURNING OF PAPER IS A IRREVERSIBLE CHANGE. AND A CHEMICAL CHANGE. ONCE A PAPER IS BURN THEN IT CANT BE IN ITS USUAL FORM. AND AFTER BURNING A PAPER A NEW SUBSTANCE (ASH) IS FORMED
c) WEATHERING OF ROCK IS ALSO A IRREVERSIBLE CHANGE AS WELL AS WELL AS PHYSICAL CHANGE. ONCE A ROCK IS BREAKDOWN THEN IT CAN BE ATTACHED. AND IT CHANGES ITS SHAPE ALSO
d) MAKING ICE CREAM FROM MILK IS A CHEMICAL AND REVERSIBLE CHANGE.. WHEN WE ADD MILK AND OTHER ESSENTIAL THINGS TO MAKE A ICE CREAM AND PUT IT TO FREEZE IT THEN WE GET A NEW SUBSTANCE.. AFTER PLACING IT IN A HOT PLACE WE CAN GET BACK THE MILK
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