Science: Insulation

insulation

Insulation
insulation

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