Science: Insulation

insulation

Insulation
insulation

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