Science: Insulation

insulation

Insulation
insulation

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