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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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  Title Popularityˆ Difficulty Submitted  
61 Invisible Ink *** ** 01/01/03 by alintanfern
62 Speed of Light *** * 04/18/02 by bobbrt
63 Burned By Clouds *** ** 08/22/06 by metallicman
64 Live Camera *** ** 05/31/02 by Mogmatt16
65 Elemental Opposites *** ** 05/26/11 by logicgenius
66 Sharkie *** * 12/27/02 by Julia
67 Meteorite *** * 07/08/02 by glennyboy02
68 Renewable Energy *** ** 12/30/03 by curtiss82
69 Matter transporter *** ** 05/30/02 by Mogmatt16
70 Six Cylinder Engine *** ** 02/01/03 by dumbell
71 Not So Great Inventions #4 *** * 01/26/04 by od-1
72 Impossible Journey *** ** 03/23/02 by 204_BlaZe_41
73 Pirate Escape *** *** 02/22/04 by Jake
74 1=1=? *** *** 11/03/07 by AndrewWalker
75 Conversions *** ** 08/28/10 by Mogmatt16

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