Science: Insulation

insulation

Insulation
insulation

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