Science: Insulation

insulation

Insulation
insulation

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