Science: Insulation

insulation

Insulation
insulation

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