Science: Insulation

insulation

Insulation
insulation

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