Science: Insulation

insulation

Insulation
insulation

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