Science: Insulation

insulation

Insulation
insulation

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