Science: Insulation

insulation

Insulation
insulation

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