| 1 | (B) | 2 | (B) | 3 | (A) | 4 | (A) | 5 | (A) |
| 6 | (A) | 7 | (A) | 8 | (A) | 9 | (B) | 10 | (B) |
| 11 | (A) | 12 | (A) | 13 | (B) | 14 | (A) | 15 | (A) |
| 16 | (B) | 17 | (A) | 18 | (B) | 19 | (B) | 20 | (B) |
| 21 | (B) | 22 | (A) | 23 | (B) | 24 | (A) | 25 | (B) |
| 1 | B | 2 | A | 3 | A | 4 | D | 5 | A |
| 6 | D | 7 | A | 8 | C | 9 | A | 10 | D |
| 11 | C | 12 | C | 13 | B | 14 | A | 15 | C |
| 16 | D | 17 | D | 18 | B | 19 | D | 20 | B |
| 21 | D | 22 | D | 23 | B | 24 | B | 25 | B |
| 1 | D | 2 | D | 3 | C | 4 | B | 5 | B |
| 6 | C | 7 | B | 8 | B | 9 | C | 10 | C |
| 11 | A | 12 | A | 13 | B | 14 | B | 15 | A |
| 16 | C | 17 | B | 18 | C | 19 | A | 20 | D |
| 21 | A | 22 | C | 23 | D | 24 | B | 25 | C |
CREST Science Olympiad (CSO) Answer Keys for the Academic Year 2023-24.