A class is using marshmallows to demonstrate different chemicals' properties by heating and cooling the marshmallows. Which
student is practicing bad laboratory safety?
O Neka is cleaning up the melted marshmallows after recording her observations.
O Nikkos checks his glassware for imperfections before using them.
O Kenneth is using the Bunsen burner to roast the marshmallows and eat them.
O Kojo threw the used marshmallows into the trash can after his instructor told him to do so.