Science: Insulation

insulation

Insulation
insulation

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