Science: Insulation

insulation

Insulation
insulation

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