why do we need to group materials
NAME ANY THREE SUBSTANCES WHICH SUBLIME ON HEATING.
1.IN WINTERS, QUILTS FILLED WITH COTTON ARE USED FOR PROTECTION FROM COLD.WHY ARE
THE QUILTS NOT FILLED WITH WOOL ?
2.NOWADAYS ANIMAL RIGHT ACTIVISTS ARE AGAINST THE USE OF SOME NATURAL FIBRES,LIKE SILK
AND WOOL ( PASHMINA ). WHY ?
list 3 properties of mixtures
MELTING OF ICE IS A PHYSICAL CHANGE.WHY
is burning of candle a reversible or irreversible change?
is melting of wax a reversible or irreversible change?
why does a mosquito not have teeth?
make a flow chart to show the process innvoled in making fabrics from cotton fibers ?
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