Science: Insulation

insulation

Insulation
insulation

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