Science: Insulation

insulation

Insulation
insulation

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