Science: Insulation

insulation

Insulation
insulation

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