For recapitulation of previous topics there will be a quick recap  session with students by showing PPT. PPT related to the chapter will be shown and simultaneously explanation will be done .Examples of physical change and chemical change will be demonstrated in class. Some demonstrations of soluble and insoluble substances will be done in zoom class. Students will also perform the activity at their home..By asking questions class will be interactive and interesting. For better understanding of chapter video link will be shared.