Science: Insulation

insulation

Insulation
insulation

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