Science: Insulation

insulation

Insulation
insulation

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