Science: Insulation

insulation

Insulation
insulation

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