Mystery #1Tier 2plants / biology
Why are leaves green?
Plants live on sunlight, so you might expect leaves to be black, soaking up every scrap of light. Instead, almost all of them are green. Why would a sun-powered leaf throw a colour away?
Your guess
What's your hunch: why are leaves green rather than, say, black?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.