Science: Insulation

insulation

Insulation
insulation

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