(1)-- download from link 1
(2)-- download from link 2
(3)-- download from link 3
(4)-- project of dye electromagnet
(5)-- make a rainbow
(6)-- determining the age of trees
(7)-- burning candles of science
(8)-- make a robot
Wednesday, 8 May 2013
Saturday, 23 February 2013
Friday, 22 February 2013
Friday, 18 January 2013
Monday, 24 December 2012
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