make a phrase out of these letters; csmataquennteers

OK a phrase has more than one word. One way to "attack" this is to separate the vowels from the consonants so you know what you have to work with.

vowels = 6 = a a e e e u

consonants = 10 = c m n n q r s s t t

It also helps to know that the Subject is "science." Now, "Play" with the letters and see what words you can form.

Sra