S U S T A I N A B L E     T E C H N O L O G Y     E D U C A T I O N     P R O J E C T
home  |  about Practical Action  |  contact us  |  site map  | 
The materials on this site are no longer being updated. For Practical Action's main school site go to www.practicalaction.org/schools

1 - ecofashion
2 - yoghurt
3 - plastics
4 - playpumps
5 - organiccotton
6 - windpower
7 - maasai
8 - organicbaby
9 - soap
10 - sheabutter


a  b  c  d  e  f  g  h  i  j  k  l  m  n  o  p  q r  s  t  u  v  w  x y z
paravet a paravet is not a qualified veterinarian but they can provide animal health care advice to people in their communities 
patent to protect an invention 
per capita for each person; from the Latin 'by head' 
pesticides chemicals which are sprayed on crops and plants to kill harmful insects. Unfortunately, pesticides may also kill non-harmful insects and other animals 
photovoltaic collects light energy from the sun and converts it into electrical current 
pitched notes a pitched note is a full note on the scale e.g. ABC 
plantation an estate or farm for growing crops 
plastic the following abbreviations are used for these different types of plastic: HDPE - High density polyethylene (called polythene) LDPE - Low density polyethylene PA - Polyamide PBT - Polybutylene terephthalate PC - Polycarbonate PET - Polyethylene terephthalate PP - Polypropylene PS - Polystryrene (not expanded polystyrene) PVC - Poly vinyl chloride 
pollinate to transfer pollen from a male plant to a female plant by windwater or via the legs and bodies of insects 
pollutant chemical or waste product that contaminates the air, soil or water 
polyester a strong hard-wearing synthetic fabric 
polymer a chemical substance consisting of large molecules made from smaller, simpler molecules repeated many times to form 'chains'. Some polymers occur naturally but many such as nylon are artificial 
polypropylene a man-made plastic 
Practical Action an international organisation that works with small-scale producers in Africa, Asia and South America. Practical Action helps people to develop skills and technologies that can give them more control over their lives.
Practical Action was formerly the Intermediate Technology Development Group 
preservatives chemicals used to keep things particularly food from decaying 
production line a factory system in which a product is passed through successive processes in order to make the final item 
protein needed for growth and the development of muscles 
prototype a trial model of a product 
purify to clean and get rid of impurities 
back to top
Practical Action - Technology challenging povertyEuropean Commission - Department for International Development

S U S T A I N A B L E     T E C H N O L O G Y     E D U C A T I O N     P R O J E C T