| Dr Helmenstine holds a Ph D | Dr Helmenstine holds a Ph D |
|---|---|
| in biomedical; Writer, Is a Science; educator; school, consultant She has taught science courses at the high; college; Levels, Graduate | in biomedical; Writer, Is a Science; educator; school, consultant She has taught science courses at the high; college; Levels, Graduate |
in biomedical; Writer, Is a Science; educator; school, consultant She has taught science courses at the high; college; Levels, Graduate.
6| Dr Helmenstine holds a Ph D | |
|---|---|
.
12.
28