Science: Insulation

insulation

Insulation
insulation

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