That's one good way. Another is...
If you run character map you will see that most of the common character-sets have designated x'B0 as the degree sign. You can enter this in your text by typing it in - but it's tricky...
(hex) B0 = (decimal) 11 x 16 = 176
When you are ready for the degree sign hold down the [alt] key and
on your numeric keypad type...
0176, let the [alt] key up, and there it will be.
water boils at
100° C..............
Same technique works for all the other strange characters, too, if you convert them correctly.