Science: Insulation

insulation

Insulation
insulation

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