Science: Insulation

insulation

Insulation
insulation

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