HIGHSEA from the AWI is a program for high school students to prepare for their Abitur exams with a focus on natural sciences. High school students attend regular classes three days a week at the Carl von Ossietzky School Center. On the remaining two days, courses in biology, chemistry, mathematics, and English are held at the AWI, accompanied by teachers and scientists. The number of participants is limited, and there is an application and admission process. The basic requirement is admission to upper secondary school.
https://www.awi.de/arbeiten-lernen/aus-der-schule/als-highsea-schueler/in-1/aufnahmeverfahren-highsea.html
Students in grades 8, 9, and 10 have the opportunity to participate in junior-HIGHSEA. For three years, every Friday after the fourth period, they work together with other students on projects and experiments. The project work takes place at the AWI and covers various areas of scientific work. The program is open to students from all secondary schools in Bremerhaven.
https://www.awi.de/arbeiten-lernen/aus-der-schule/als-junior-highsea-schueler/in-1.html