Science: Insulation

insulation

Insulation
insulation

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