Science: Insulation

insulation

Insulation
insulation

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