Science: Insulation

insulation

Insulation
insulation

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