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Methuselah Tree  
Illuminating Photosynthesis
Intro | The Cycle | Atomic Shuffle | Three Puzzlers: 1 | 2 | 3

Potted plant and stars

Puzzler 2

A plant needs its own food to function.
     It can't make its own food at night.
Beyond a few hours of darkness,
     can a plant stay alive without light?                             No | Yes




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Explore the Methuselah Grove | A Tree's Secret to Living Long
Build a Tree-Ring Timeline | Illuminating Photosynthesis
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