Science: Insulation

insulation

Insulation
insulation

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