After sugar dissolves in tea it can no longer be seen
After sugar dissolves in tea it can no longer be seen. Nandini says the sugar is gone. Maanav says it is still there and has only stopped being visible. If the glass were weighed before and after dissolving, what would happen?
Who do you think is right? Pick one.
The answer: The weight would stay the same
Why
Nandini is trusting her eyes, which is usually the right instinct — the spoonful really has vanished from sight. But two other senses disagree with her eyes: the tea is now sweet, and the scale does not move. Sugar is made of particles far too small to see, and stirring breaks the crystal apart and scatters those particles into the gaps between the water particles. Nothing was destroyed; it was spread out. Picture a handful of fine sand poured into a bucket of pebbles — the sand disappears into the spaces, and the bucket gets heavier, not lighter. Test: boil the sweet tea dry and the sugar comes back as a sticky brown layer, proving it never left. The weight stays the same: dissolving hides matter, it does not remove it, and the taste is your evidence.
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