Hanging Garden: Making good use of (free!) 6,000 liters of water/year

Wordle: herbsI’ve been asked to provide updates on our Hanging Garden Project. We’ve got new planters, ‘freshly donated seeds’… and a cost-free watering system. For the ones not (yet!) familiar with the ‘mathematics behind getting cost-free water‘, here’s how it works: Our middle/high school students have been deeply involved in building a system with planters made from recycled PET bottles, as seen on the right.

Besides that, we’ve discovered a great source of clean/distilled water for all the watering needs: the several air conditioning devices, spread throughout the school campus. So, the students began collecting the not-before-managed water… But, how could they find out how much water would be “released” by the AC devices?

The answer to that question morphed into a mini-mathematical project: Math students were asked to develop a strategy to evaluate the volume of water released by the AC equipments, write their assumptions down (hourly rate, number of school days, etc), and today presented their results: on average, an AC device is capable of releasing over 6,000 liters of water during the course of a regular school year.



Way more than enough for keeping the Hanging Garden alive and growing! 😮

Having fun with graduated cylinders & Math!

Let’s see… once more, science and math can definitely be fun (and rewarding!) 😮

So far, we’ve got seedlings of:
Arugula, rocket (Diplotaxis arucoides) [Rúcula, in Portuguese)
Basil (Ocimum basilicum) [Manjericão]
Chamomile (Chamaemelum nobile) [Camomila]
Cherry tomato (Lycopersicom esculentum var.) [Tomate-cajá]
Anise (Agstache foeniculum) [Erva-doce] 
French onion 

Bell Pepper