static testing :means without executeing the source code on 
computer.static testing involes code reviews,code 
inspections,desktop checking.
example:code works according to the requirements
2.code has been any func missed out.

dynamic testing: means exceuting the code on computer.
we can do the unit testing ,code coverage testing like that

Static testing- Review Process takeplace. from static 
testing itself we can find no. of defects. it's very help 
for testing process and costwisw also good. 
it will happen before starting a dynamic testing.
here 100% code coverage 

Dynamic testing-Here actual testing process carried out. 
here we can't say 100% code coverage.

During static testing, you have a checklist to check 
whether the work you are doing is going as per the set 
standards of the organization.Review's, Inspection's and 
Walkthrough's are static testing methodologies.

Dynamic Testing involves working with the software, giving 
input values and checking if the output is as expected. 
These are the Validation activities. Unit Tests, 
Integration Tests, System Tests and Acceptance Tests are 
few of the Dynamic Testing methodologies.