Science: Insulation

insulation

Insulation
insulation

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