Simulations links
https://www.google.com/streetview/#international-space-station/ – making your own
http://www.cressingprimary.com/computingsimulations
http://www.mountcarmel.ealing.sch.uk/ict-simulations/
http://primarygamesarena.com/Types/Simulation
Technology Around Us
How a bank works
How a library works
How a supermarket works