Ice core ! ...   (10-12 years old)
 
 
 
 
 
 
 
 
 
 
 
  The act of extracting the sample of ice called “ice sample carroting” - the shape of a 
  cylinder (which using a little imagination looks like large carrot) collected by drilling 
  deep into the ice cap. 
  Scientists analyze ice cores, because the ice is a memory of the climate and air bubbles 
  that are trapped are memories of the composition of the atmosphere. 
  ( picture : ice cap of Greenland)
 
 
 
  ! ! ! Disaster for the glaciologist ! ! !        2 labels were peeled off  the samples . . .
 
 
 
 
 
 
 
  In French "ice core" means
  "carrot of ice" like it was a dessert
                  But it isn't!
 
 
 
 
  Help him to find the missing labels ! 
  The glaciologist is desperate ...
 
 
 
 
 
 
  ?
 
 
 
 
  ?
 
 
 
 
 
 
 
 
  23 = (+1 … x2 … +1 … x2 …)
 
 
  23
 
  
 
 
 
 
 
  65
 
 
 
 
 
  65 = ( -10 … -5 … -10 … -5 …)