Science: Insulation

insulation

Insulation
insulation

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