I've listed up to high D, but the flute can actually play higher notes than this. I decided to stop at the range used most often in flute music; while you might find higher notes than D in contemporary music, they aren't used as commonly.
You might notice that some of the notes are red; these red notes are called enharmonic notes or enharmonic equivalents. When notes are enharmonic, it means they are written differently but sound the same.
Let's use F# (F sharp) and Gb (G flat) as an example.
F and G are a whole step apart.
The note in between them can be called F# if you are traveling upward one half step from F.
it can be called Gb if you are traveling downward one half step from G.
In either case, you land on the note in between F and G.
Feel free to download the handout above and use it in your practice or your classroom. As always, if you have any thoughts or comments, please share!