Great for 4th or 5th grade
http://www.musictheory.net/exercises/keyboard/y9md
4th or 5th grade
http://www.musictheory.net/exercises/note/bmoyoyyynyy
http://www.musictheory.net/exercises/note/bgmyryyynyy
http://www.musictheory.net/exercises/note/bjxynyyynyy
Trombone 4th & 5th
http://www.musictheory.net/exercises/note/bfoyoyyynyy
6th or 7th
http://www.musictheory.net/exercises/note/bjwyabyynyy
http://www.musictheory.net/exercises/note/bboy6yyynyy
http://www.musictheory.net/exercises/note/bgwo8yyynyy
http://www.musictheory.net/exercises/note/bgwyqy
http://www.musictheory.net/exercises/note/bdtyqy
http://www.musictheory.net/exercises/note/n8wyab
http://www.musictheory.net/exercises/note/bfwyab
7th or 8th grade
http://www.musictheory.net/exercises/note/bezyad
7th or 8th
http://www.musictheory.net/exercises/note/bnuy6y
http://www.musictheory.net/exercises/note/bgwyxy
http://www.musictheory.net/exercises/note/bgwy6y
http://www.musictheory.net/exercises/note/bdty6y
http://www.musictheory.net/exercises/note/n8wyad
http://www.musictheory.net/exercises/note/bfwyad