Science: Insulation

insulation

Insulation
insulation

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