Science: Insulation

insulation

Insulation
insulation

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