Science: Insulation

insulation

Insulation
insulation

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