Science: Insulation

insulation

Insulation
insulation

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