Science: Insulation

insulation

Insulation
insulation

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