Science: Insulation

insulation

Insulation
insulation

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