Science: Insulation

insulation

Insulation
insulation

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