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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 It's Freezing! *** * 02/11/08 by besmartbaby
137 It's Not Easy Being Green *** *** 02/26/06 by norcekri
138 Jet Bird *** ** 03/10/02 by tdh415
139 Jim and Joe *** * 05/20/11 by Oxiproxd9
140 Joe Thunder **** *** 03/17/03 by od-1
141 Juggler Issue *** ** 02/25/09 by rockstar1234567
142 Ketchup Sachet *** ** 11/25/07 by King_of_Smart
143 Kitties! *** *** 03/09/06 by bigSWAFF_69_
144 Knot the Rope *** ** 09/25/01 by Michelle
145 Lead and Rubber Drop *** ** 07/23/04 by gander
146 Li'l Johnny *** *** 10/03/07 by Hrsemn4
147 Light of the Silvery Earth *** * 06/15/02 by bobbrt
148 Light Train *** ** 03/07/02 by 204_blaze_41
149 Light-year *** ** 10/05/01 by starman
150 Liquid or Gas? *** * 12/09/07 by King_of_Smart

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