Science: Insulation

insulation

Insulation
insulation

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