Science: Insulation

insulation

Insulation
insulation

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