Science: Insulation

insulation

Insulation
insulation

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