Science: Insulation

insulation

Insulation
insulation

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