Science: Insulation

insulation

Insulation
insulation

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