Man-made+leaf

photosynthesis
 * oxygen
 * CO2 - carbon dioxide

light dependent reactions

chloroplasts

silk protein

|Man-made leaf that could enable humans to colonise space] (video 2:54)
 * What's the problem?**
 * **Ask** - Plant leaves have the ability to use carbon dioxide to produce oxygen. Could this process be replicated by a man-made material? This material could be used to improve air quality in cities, in houses and offices, and even on spacecraft to extend voyages.
 * **Imagine** - How do plants do it - convert carbon dioxide (CO2) into oxygen? How could plant "factories" - cholroplasts, be used to do the work? What kind of material would be necessary to hold the choloroplasts in a form that could then be incorporated into wall covering?
 * **Design, Build** - What is needed for a man-made leaf to to function? How can the sunlight be directed to the material? Where does the CO2 come from? How can the oxygen be captured for later use?
 * **Improve** - These are still just ideas with some small working examples. How can this be scaled for practical use outside the test environment?


 * That's engineering**

> artificial, photosynthesis, light, energy, light dependent reactions
 * Engineering ideas**

Challenges for you to work on...
 * Do It**


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..r0