Science: Insulation

insulation

Insulation
insulation

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