Place a piece of paneer in water. Pure paneer will sink and stay solid, but if it dissolves or breaks apart, it has been tampered with. Boil the paneer, cool it, and add iodine to it. If the paneer ...

Where would carbon-based life be without carbon? There are 118 known chemical elements, but carbon is the fourth most ...

For example it is unnecessary to explain, in a paragraph about the pebble beaches of Dieppe, that ‘chalk is a limestone made from the skeletons of ancient sea-creatures forming sedimentary strata of ...

Skimmed milk has a little more calcium than semi-skimmed, which in turn has a little more calcium than whole milk. The reason is simply that as the fat is removed, the watery proportion of the ...