Science: Insulation

insulation

Insulation
insulation

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