Science: Insulation

insulation

Insulation
insulation

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