Science: Insulation

insulation

Insulation
insulation

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