Science: Insulation

insulation

Insulation
insulation

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