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The materials on this site are no longer being updated.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
sanitation the removal of sewage and rubbish from living areas 
saponification the process of converting a fat into soap especially by reaction with an alkali 
scald to burn with hot liquid or steam 
semi-pitched notes a semi-pitched note is half a tone below or above a full note e.g. F sharp or B flat 
sewage human waste from excretion 
shuttle a bobbin with two pointed ends that carries the weft thread between the warp threads in weaving 
smoke-related illnesses conditions which include asthma, bronchitis (inflammation of the windpipe) and lung cancer 
solvent a substance which dissolves solids 
soundboard a thin sheet of wood over which the strings of a musical instrument pass to increase the sound produced 
spectroscope an instrument used to produce and examine light (spectra) 
spermaceti a white waxy substance produced by the sperm whale stored in a special organ on the whale's head and used to control the whale's position and depth in water. The substance has been used to make candles, ointments and as a base for cosmetics 
standpipe a temporary water supply leading off from the mains; often a tap in the street 
subsistence farmers farmers who grow just enough food for themselves and their families with nothing left over to sell 
sulphur dioxide (SO2) a poisonous gas formed by burning sulphur compounds 
surfactant a substance such as a detergent which reduces the surface tension of liquids so that the liquid spreads out rather than collecting in droplets 
sustainable development aims to enable people to support themselves, their families and communities without spoiling the chances of generations to come to do the same. For example through growing food or making goods. This means using resources and the environment carefully. The results of sustainable development will be good standards of living, more choice 
sustainable technology a tool or way of doing things (technique) that uses resources carefully, minimising damage to the environment and ensuring that resources are available for future generations 
synthesiser an electronic musical instrument 
synthetic a substance or material manufactured by a chemical process rather than occurring naturally 
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