Science: Insulation

insulation

Insulation
insulation

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