Science: Insulation

insulation

Insulation
insulation

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