Lee and Celia are lab partners. While Celia pours a chemical into a graduated cylinder, some of the chemical splashes onto her arm. What should happen next?

A chemical splash on the skin should be washed off promptly with soap and water. Lee should alert the teacher immediately so the teacher can help and assess the situation while Celia washes her arm. Simply wiping the chemical off or waiting until later could leave it on her skin longer; a safety shower is generally for larger spills or exposures.

AI-written and checked against the verified answer.