Science: Insulation

insulation

Insulation
insulation

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