"What do you mean?" asked Crackers. "Clocks are much bigger and have numbers all round a dial. This is nothing like that at all!"
"Actually, they are only called dandelion clocks, they're not real clocks," clarified Oscar. "After a dandelion has flowered and it sets seed, the flower (actually, hundreds of tiny florets) turns into a ball of seeds known as a dandelion clock. Each seed is suspended from a parachute-like stalk - easily released by a puff of air."
"That's very clever," said Crackers thoughtfully, "but why are they called clocks?"
"Well," said Oscar, "it's believed by many that the number of puffs needed to blow all the seeds from a dandelion clock is supposed to equal the current time of day."
"Oooh! Can we try it?" asked Crackers, very intrigued.