Science: Insulation

insulation

Insulation
insulation

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