Science: Insulation

insulation

Insulation
insulation

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