Science: Insulation

insulation

Insulation
insulation

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