Science: Insulation

insulation

Insulation
insulation

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