Science: Insulation

insulation

Insulation
insulation

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