Science: Insulation

insulation

Insulation
insulation

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