Simplify the following text for a Grade 9 native English-speaking person.
Original: In 1922 , Pauling graduated from Oregon State University with a degree in chemical engineering and went on to graduate school at the California Institute of Technology ( Caltech ) in Pasadena , California , under the guidance of Roscoe G. Dickinson .
Simplified: He went to Oregon Agricultural College and graduated in 1922 with a degree in chemical engineering . Pauling then went to the California Institute of Technology ( Caltech ) , where he received his Ph. .