Before the start of every chemistry lab course, students are required to attend a mandatory safety briefing. With the help of an additional online-supported self-study course, the time in the laboratory can be used more effectively, while at the same time more in-depth information can be conveyed asynchronously. The self-study course was created for the Moodle learning management system and includes the H5P elements "Columns", "Virtual Tour (360)" and "Question Set" in addition to an explanatory video. They effectively prepare the internship and increase knowledge of safety instruction. The "Virtual Tour (360)" in particular enables students to gain an insight into the laboratory setting of the internship in advance.