Science: Insulation

insulation

Insulation
insulation

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