Science: Insulation

insulation

Insulation
insulation

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