i am currently learning though a book called abracadabra flute at it shows you allt the nots but not how to make the note with the same fngerings higher, i found out from a friend how to do it but how can you do it efficently because it my book i have just came across a song were you need to go from c2 to c3 and i can't make a c3 very well with out playing it in a scale, so i guess what i a trying to say is how do i get form c2 to c3 efficantly in this peice of music

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i also have another questio how do you change the volume without getting naff sounds

Raise your airstream to jump the octave, and you may need to make some small changes in air pressure/speed to control tone and pitch. Octave leaps are something you can work on independently of the music. Try slurring from G1-G2 (starting slowly, and gradually adding more speed as you become more comfortable), and then F#1-F#2, G#1-G#2, F1-F2, A1-A2, etc. Eventually you'll get a feel for where you need to direct the air and how to use it to produce consistent, full toned (and in tune) octave leaps. They're not something that is natural to do, especially at great speed, so it's not surprising that you need a bit of work. As for your second question, I'm unsure what "naff sounds" might be, so I can't help much there unless you can clarify a bit.

I think naff is slang, based upon a search online, for bad/nasty.

ok i ment an airy nasty sound, but how do you cange the volume of your playing?

my advice: get private lessons through a flute teacher.

I agree that you should get a private teacher if you do not already have one. I don't know for sure how long you've been playing, but I seem to remember you mentioning that you're a relative beginner, and if that's true, it's probably too early to start worrying about dynamics. You should focus on building a good, flexible embouchure and learning to consistently produce a nice full, round sound, as well as the basics of a good technique. Once you have done that, then you can start to learn how to manipulate your air/embouchure to produce dynamics and the other more subtle parts of flute playing.

There are a couple of options for why you're having difficulty playing dynamics, though. One is that the embouchure hole may be too covered (or uncovered) when you're playing. A general rule is that you want to cover 1/3 to 1/2 of the hole (this varies greatly from player to player and depends on the size of the embouchure hole as well), but covering too much will create a stuffy sound where it's hard to play loudly, and uncovering too much will cost you control and make it difficult to control pitch as well as the quieter end of the dynamic spectrum. Another possibility is that you simply haven't learned to use your embouchure and airstream to control volume yet. Generally, to play more quietly, you want to slow the air down (though this will cause flatness, so you'll also need to aim the airstream higher to compensate) by altering the size of your aperture and possibly the air pressure you're using, and to raise pitch, you'll want to increase airspeed, (which is not the same as blowing harder) and thus lower the airstream to prevent a rise in pitch.

blow air faster. - more swiftly. it should come out great if you keep a steady flow of air.

Blowing the air faster is only a small part of the answer. As I mentioned above, most of what you should be doing to change octaves is simply raising the air. Some very minute changes in air speed/pressure may be necessary to achieve the tone you want, but simply blowing faster is not how you manage to play higher notes.

It is a good thing we have Chris to correct everyone! I learn more everyday.