Science: Insulation

insulation

Insulation
insulation

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