Science: Insulation

insulation

Insulation
insulation

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