Science: Insulation

insulation

Insulation
insulation

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