Science: Insulation

insulation

Insulation
insulation

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