Science: Insulation

insulation

Insulation
insulation

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