Science: Insulation

insulation

Insulation
insulation

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