Science: Insulation

insulation

Insulation
insulation

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