Science: Insulation

insulation

Insulation
insulation

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