Science: Insulation

insulation

Insulation
insulation

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