A few pointers.
We used the example of Wikipedia to show how other similar encyclopaedias which are created by lots of contributors are put together.
Information contained within the articles is referenced, so that the sources are credited.
Images should be Creative Commons licensed hopefully.
Here are some possible article titles which you might be able to use.
Places
McMurdo
Sound and Base
South
Pole Base
Explorers’
Huts: Scott and Shackleton
UK
bases
Animals
Seals
Penguins
Whales
and Krill
Use
of dogs on the continent
People
Robert
Falcon Scott and others
Ernest
Shackleton and others
Douglas
Mawson
Roald
Amundsen
Landscape
Transantarctic Mountains
Water & Ice
Ronne
and Ross Ice Shelves
Southern
Ocean
East
and West Antarctic Ice Sheets
Science
& People
Antarctic
Bases
The
Antarctic Treaty
Ozone
Layer
South
Pole base
Weather
Katabatic
winds
Low
temperatures
Winter
conditions
Seasonal
daylight and darkness
Tourism
Tourist
code
Numbers
and destinations of tourists
Attractions
for tourists
Problems
The
Future of Antarctica
Global
Warming and Sea level rise
And thanks to Charlotte for suggesting the name Antarctipedia, which is better than the original one I came up with....
