Science: Insulation

insulation

Insulation
insulation

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