Science: Insulation

insulation

Insulation
insulation

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