Science: Insulation

insulation

Insulation
insulation

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