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 I
H N A A N B J N N
O E B Y S Y S U N
T R A Q C U T H O
U G X T L F O B R
P Y P A K L V I A
G R T V D B E D G
C O L D D F I R E
R K C O B J S Y Y
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