Science: Insulation

insulation

Insulation
insulation

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