Help find the mystery phrase. We are studying the Earth and were not given anything except letters. They are: RORPSPNGLOADEEASI. Please help!!!

You weren't even told how many words were IN the phrase?

Break it up into vowels together and consonants together. That makes it easier to try combinations of letters:

a a e e i o o (7 vowels)

d g l n p p r r s s (10 consonants)

If your textbook has a glossary or lexicon (vocabulary list), it will help to know some of the words you have been using while you studied science.

Sra

P.S. Don't forget combinations lie pr, sr, dr, etc.