Science: Insulation

insulation

Insulation
insulation

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