Science: Insulation

insulation

Insulation
insulation

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