Science: Insulation

insulation

Insulation
insulation

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