Science: Insulation

insulation

Insulation
insulation

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