Science: Insulation

insulation

Insulation
insulation

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