Science: Insulation

insulation

Insulation
insulation

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