Science: Insulation

insulation

Insulation
insulation

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