Science: Insulation

insulation

Insulation
insulation

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