Report spills to your teacher immediately. Wear a protective eye shield. Pay close attention to instructions. Smell the chemicals that are being mixed.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When conducting a laboratory experiment, which action could be an unsafe practice?
Possibilities:
- Report spills to your teacher immediately.
- Wear a protective eye shield.
- Pay close attention to instructions.
- Smell the chemicals that are being mixed.

Smell the chemicals that are being mixed.