Science: Insulation

insulation

Insulation
insulation

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