Science: Insulation

insulation

Insulation
insulation

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