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Science Brain Teasers

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

Brain Teasers

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  Titleˆ Popularity Difficulty Submitted  
136 Irresistible Force *** ** 03/24/02 by 204_BLaZe_41
137 It's Freezing! *** * 02/11/08 by besmartbaby
138 It's Not Easy Being Green *** *** 02/26/06 by norcekri
139 Jet Bird *** ** 03/10/02 by tdh415
140 Jim and Joe *** * 05/20/11 by Oxiproxd9
141 Joe Thunder **** *** 03/17/03 by od-1
142 Juggler Issue *** ** 02/25/09 by rockstar1234567
143 Ketchup Sachet *** ** 11/25/07 by King_of_Smart
144 Kitties! *** *** 03/09/06 by bigSWAFF_69_
145 Knot the Rope *** ** 09/25/01 by Michelle
146 Lead and Rubber Drop *** ** 07/23/04 by gander
147 Li'l Johnny *** *** 10/03/07 by Hrsemn4
148 Light of the Silvery Earth *** * 06/15/02 by bobbrt
149 Light Train *** ** 03/07/02 by 204_blaze_41
150 Light-year *** ** 10/05/01 by starman

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