Science: Insulation

insulation

Insulation
insulation

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