Science: Insulation

insulation

Insulation
insulation

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