Science: Insulation

insulation

Insulation
insulation

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