Science: Insulation

insulation

Insulation
insulation

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