| 1 | (C) | 2 | (C) | 3 | (A) | 4 | (B) | 5 | (D) |
| 6 | (D) | 7 | (A) | 8 | (B) | 9 | (A) | 10 | (C) |
| 11 | (D) | 12 | (C) | 13 | (A) | 14 | (A) | 15 | (D) |
| 16 | (B) | 17 | (B) | 18 | (D) | 19 | (A) | 20 | (C) |
| 21 | (C) | 22 | (A) | 23 | (A) | 24 | (B) | 25 | (D) |
| 26 | (C) | 27 | (C) | 28 | (B) | 29 | (C) | 30 | (D) |
| 31 | (A) | 32 | (B) | 33 | (C) | 34 | (A) | 35 | (D) |
| 1 | B | 2 | B | 3 | A | 4 | B | 5 | C |
| 6 | D | 7 | C | 8 | C | 9 | C | 10 | D |
| 11 | D | 12 | D | 13 | D | 14 | A | 15 | A |
| 16 | C | 17 | D | 18 | A | 19 | D | 20 | D |
| 21 | A | 22 | B | 23 | B | 24 | C | 25 | D |
| 26 | D | 27 | D | 28 | C | 29 | C | 30 | B |
| 31 | C | 32 | A | 33 | B | 34 | B | 35 | C |
| 1 | C | 2 | D | 3 | A | 4 | D | 5 | C |
| 6 | A | 7 | C | 8 | A | 9 | A | 10 | D |
| 11 | A | 12 | A | 13 | A | 14 | A | 15 | A |
| 16 | B | 17 | D | 18 | C | 19 | C | 20 | B |
| 21 | A | 22 | A | 23 | C | 24 | C | 25 | B |
| 26 | D | 27 | C | 28 | D | 29 | C | 30 | D |
| 31 | D | 32 | C | 33 | A | 34 | A | 35 | C |
CREST Science Olympiad (CSO) Answer Keys for the Academic Year 2023-24.