Science: Insulation

insulation

Insulation
insulation

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