Science: Insulation

insulation

Insulation
insulation

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