Science: Insulation

insulation

Insulation
insulation

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