Science: Insulation

insulation

Insulation
insulation

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