Screws

Five, four, three, two, one
A little screw went for a run
And now without this little part
Everything just falls apart

If you think a screw is nothin'
Take 'it out but just beware
Everything will break without 'em
With no little screws in there

The bulldozer was a strong one
Until there was a thud
And then the mighty giant
Fell straight into the mud

The mighty crane was working
Until there was a pop
And then the mighty giant
Gave out and lost its top.