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

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  Title Popularityˆ Difficulty Submitted  
136 Blue Liquid *** ** 06/05/02 by im_para_noid
137 Broken TV? *** *** 03/09/06 by Question_Mark
138 The Odd Car *** ** 03/11/03 by Sciocleseus
139 Sound + Sound = Silence *** ** 11/09/02 by Ga_z
140 A Lost Tennis Ball *** ** 05/16/01 by Jacob
141 CHEMICALS *** ** 08/23/02 by dumbell
142 Turntables *** ** 08/21/02 by im_para_noid
143 All Jammed Up *** ** 06/05/03 by od-1
144 Time Zones 3 *** ** 06/15/06 by achnid
145 Paraffin Lamp *** ** 01/16/03 by hip2b2
146 Water Pump *** ** 04/16/02 by Bobbrt
147 Pint of Guinness *** *** 04/22/02 by cathalmccabe
148 The Toasted Tunnel *** ** 03/27/03 by Palsha
149 Juggler Issue *** ** 02/25/09 by rockstar1234567
150 Fraudulent Inventor *** ** 07/12/03 by Bobbrt

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