Science: Insulation

insulation

Insulation
insulation

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