Science: Insulation

insulation

Insulation
insulation

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