Science: Insulation

insulation

Insulation
insulation

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