Science: Insulation

insulation

Insulation
insulation

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