Science: Insulation

insulation

Insulation
insulation

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