Science: Insulation

insulation

Insulation
insulation

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