During the COVID-19 pandemic, one of the obstacles faced in learning is the low students’ involvement in the learning activities. This study generally aims to identify the relationship between students’ perceptions of the activities in the Learning Activity Sheets and their level of performance in Earth Science 8. This research involved 40 Grade 8 students in Cadandanan National High School. The results showed that the students’ perception is significantly correlated to their level of performance in Earth Science 8. The results of this research also illustrated the importance of designing effective learning activity sheets that support the effectiveness of modular distance learning during the COVID-19 pandemic.