Science: Insulation

insulation

Insulation
insulation

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