Science: Insulation

insulation

Insulation
insulation

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