Science: Insulation

insulation

Insulation
insulation

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