Soil Science thoughts

Implications for teaching:

Soil is a non-renewable resource
Takes 1000s of years to make soil
Made up of 5 parts
organic matter - decaying plants and animals
air
water
microbes - living organisms
inorganic matter - mineral particles eg sand, stones, silt, clay, rock

quite fundamental learning even for small children

what does this mean in terms of new housing, farming, looking after gardens, what to plant