Science: Insulation

insulation

Insulation
insulation

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