Science: Insulation

insulation

Insulation
insulation

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