In Sciences, my 7th graders were asked to present a PPt on "My Scientist". Each chose a different scientist and then their teacher of English took it one step further and asked them to do the same in English! Here is the result :) Richard Oldham, by Gonçalo

1. Richard Dixon Oldham
Born on 31 July, 1858
Died on 15 July, 1936
British Geologist

2. Richard Oldham made the first clear identification of the
separate arrivals of P waves, S waves and surface waves in
seismograms.
Taking into account the different speed at which seismic
waves propagate P and S, he concluded that the Earth has a
core and this core would have a fluid zone.

3. http://pt.wikipedia.org/wiki/Richard_Dixon_Oldham
Gonçalo Silva 7ºA nº5