Science: Insulation

insulation

Insulation
insulation

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