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
Y O I N B W I U U
C R T H E A T I X
E E F A O R F B B
I N I D L T G H S
F E E Z C U U Y C
K T E V O T S U N
N E H M L P M N C
C G C I D X Q L I
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