Science: Insulation

insulation

Insulation
insulation

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