Science: Insulation

insulation

Insulation
insulation

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