Science: Insulation

insulation

Insulation
insulation

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