Science: Insulation

insulation

Insulation
insulation

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