Science: Insulation

insulation

Insulation
insulation

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