Science: Insulation

insulation

Insulation
insulation

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