Science: Insulation

insulation

Insulation
insulation

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