The 7th ICBS 2021 will be held online from Ambon-Maluku, the capital city of Maluku Province of Indonesia, on November 23th – 24th, 2021, with the main theme “Exploring Potentials Researches in Pandemic Covid-19“. This event aims to provide an opportunity to bring together scholars, researchers, and experts from various backgrounds and fields of application and share the results of their research and experience in their respective fields. We hope that mutually supportive interactions can increase interaction between theoretical and experimental studies in various fields of research. So, there is an exchange of ideas and thoughts that can lead to new ideas that can become new research in the fields of mathematics, chemistry, physics, biology (theory and application) as well as new research which is a collaboration of several fields. Finally, it can produce new fields of study that are beneficial for the development of new science and technology.