Science: Insulation

insulation

Insulation
insulation

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