Science: Insulation

insulation

Insulation
insulation

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