These are a variety of activities which involve simulations

update  8-1-2010
Apologies to those who tried tp pull the sheets earlier - I have now fixed the link for #4

1. Rock Cycle -  www.teachersdomain.org/resources/ess05/sci/ess/earthsys/rockcycle/index.html

  simple but good review  student sheet 

2.  Population   Excel -Vernier     Student1,  Student2

  a very well set up spread sheet with pages of increasing complexity including complex predator prey relationships

3. Glacier action and stability  -  phet.colorado.edu Earth science,  Glacier

   Fun and interesting to see how rapidly it changes as temperature varies. Student sheet

   (phet has loads of stuff I use in physics and has been adding chemistry etc. -- this is the only earth science I've used so far)

4. Urban planning - games.download3000.com/play/urban-plan-2001 - the kids love this worksheet

5. Climate change   -  chooseclimate.org/jcm/jcm4     - complex but worthwhile - student sheet

6. Ecology Simulation  -  http://www.learner.org/courses/envsci/interactives/ecology/ - student sheet

good ecology sim 

 7. Climate Challenge Politics  -  www.bbc.co.uk/sn/hottopics/climatechange/climate_challenge/

               student sheet