Science: Insulation

insulation

Insulation
insulation

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