Science: Insulation

insulation

Insulation
insulation

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COLD
ENERGY
FIRE
HEAT
HOT
INSULATOR
STOVE
SUN
TRANSFER
L J T O S W W C R
G H E W B T T O T
B D E P F R T L X
X W V E D A I D E
N R O S L N Z R B
C U T U M S I T U
M H S L U F A A M
S N R E N E R G Y
I E T O H R G I U
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