Science: Insulation

insulation

Insulation
insulation

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