Science: Insulation

insulation

Insulation
insulation

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