Science: Insulation

insulation

Insulation
insulation

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