Science: Insulation

insulation

Insulation
insulation

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