Science: Insulation

insulation

Insulation
insulation

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