Science: Insulation

insulation

Insulation
insulation

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