Science: Insulation

insulation

Insulation
insulation

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