Science: Insulation

insulation

Insulation
insulation

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