Science: Insulation

insulation

Insulation
insulation

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