Science: Insulation

insulation

Insulation
insulation

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