Science: Insulation

insulation

Insulation
insulation

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