This article claimed that that 80% of boys knew that Alexander Graham Bell invented the telephone and that more children want to win a Nobel Prize for Science than win the 'X Factor'.
They may well be disappointed however if it is true that a third of them thought that Isaac Newton discovered fire...
Anyway, the important point is that Primary school kids seem excited by Science whereas Secondary school pupils are not. The reasons for this are simple.
Science in Primary Schools is new and interesting, whereas in Secondary Schools it has become extremely boring, due to a dull syllabus and over zealous Health and Safety rules which put teachers off attempting the more interesting (ie loud) practicals. Combine this with endless preparation for tests and a serious lack of new teachers with an in depth knowledge of their subject and you have a recipe for disaster.