Science: Insulation

insulation

Insulation
insulation

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