Science: Insulation

insulation

Insulation
insulation

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