Mystery #4Tier 1-2plants / transport
Why does celery change colour when you stand it in dyed water?
Stand a stick of pale celery in a glass of bright blue water and wait a day. The celery turns blue from the bottom up, and slicing it open reveals neat blue dots running through it. What's going on inside?
Your guess
What's your hunch about how the colour gets up into the celery?
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.
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