Science: Insulation

insulation

Insulation
insulation

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