Science: Insulation

insulation

Insulation
insulation

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