Science: Insulation

insulation

Insulation
insulation

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