NORCROSS  WILDLIFE SANCTUARY                      
                        
ENJOY A FULLER AWARENESS OF OUR NATURAL SURROUNDINGS
BY RECOGNIZING SOME COMMON ANIMAL TRACKS AND SIGNS.		                      MARCH
OUR WORKSHOP IS MAKING A PLASTER   CASTING OF AN ANIMAL TRACK                        CLASS
FOLLOWING ARE SOME PICTURES OF THE CLASS:
                    tr.1.jpg (33016 bytes)

 

 dogprint.jpg (16905 bytes)
When there is snow on the ground it is a great time to study the tracks of your pets.  This is a track of a dog, notice the nails.
          When the children arrive the print is already in the sand.
                    tr.jpg (29392 bytes)

 walltracks.jpg (28583 bytes)
Some of our tracks on the wall for display.
      Next they place a waxed cardboard strip around the track. 
                    tr3.jpg (26297 bytes)          

 dinotrack.jpg (23717 bytes)
Our very popular dinosaur track on display.
        Then they mix the plaster to a melted ice cream consistency.
                    tr4..jpg (28892 bytes)            

              
           

             When it is ready they pour it into the cardboard strip
                     tr5..jpg (28337 bytes)
  It is important to pour the plaster in the center of the track, quickly.
                    tr6..jpg (27815 bytes)
            After at least 45 minutes, the cardboard is removed.
                    tr7..jpg (26171 bytes)
Then the cast is carefully turned over and the sand brushed off by hand.
                    tr8..jpg (25922 bytes)
The track is then visible and the children take it home.  It is still at a very delicate state and needs to be handled carefully for about two weeks.  After that they can use an old toothbrush to brush the track clean.