| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | chemical reactions | Chemistry laboratory | Studied and observed to understand the properties and behavior of substances. | 1 |
| 2 | chemical reactions | Chemistry labs in scientific community | Subject to rigorous experimentation and analysis for research and practical applications | 1 |
| 3 | chemical reactions | chemistry lab | Studied and manipulated to understand properties of substances and produce desired compounds | 1 |