You might need a good OS map and a compass as well - my guess is that
altitude and the direction the gravestone is facing are both variables
which your students would want to record.
If you wanted to get more sophisticated you could also look at species
diversity at different sites.
Who knows, along the way some of your students might discover some long
lost ancestors as well!
Cris
>>Had a thought. how about a practical that just requires your van a
>ruler and graph
>>How about lichen growth on local grave stones the students could plot
>the diameter of lichen against the age (taken from the dates on the
>stones and calculate a growth rate
>>Maybe try sites near roads and big towns against countryside :
>pollution etc.
>>I've got the prac. details if you want them
>>Andy Dyson
>andy at biology.demon.co.uk
___________________________________________________________________________
: Dr. Cris Woolston :
: Department of Applied Biology :
: University of Hull, Cottingham Road, Hull HU6 7RX, UK :
: RFC-822: C.J.Woolston at applied-biology.hull.ac.uk :
: Tel: +44 1482-465549 Fax: +44 1482-465458 :
___________________________________________________________________________
