working models like electrical ones
a suitable still model for science exhibition is volcanos
a model of kidney
volcano
non working
don't make windmills or dams.Making something like traffic control system will be spectacular.
By your Hands
dam will be good idea
advantages of science exhibition
There are a number of different types of working models that you could use for a science exhibition. You could demonstrate the flow of water in the water cycle for example by setting up a fountain system.
A science exhibition.... science fair... or quiz based on science facts... also u can conduct a exhibition on medicinal plants....
plz send me a good working model of biology,its really very urgent...
The best topic can be MULTIPUPOSE PROJECT..! Okay.. or else u make it on RELATION BETWEEN PRIMARY, TERTIARY, and SECONDARY sector...