Science: Insulation

insulation

Insulation
insulation

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