CATS AND THE DEW ON THE SUNFLOWER

I am posting that becouse of the vocabulary we have learnt.
When old female cat starts singing she says: "Daylight, see the dew on the sunflower..."
But what means Dew? What means Dew Barrymore's name?
DEW: ROCÍO.
MIST: NEBLINA.
ESCARCHA: FROST.
FOG: NIEBLA
SMOG: TOXIC FOG PRODUCED BY FACTORIES, CARS...
We can say: - what a foggy day!