Science: Insulation

insulation

Insulation
insulation

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