Background: The COVID-19 pandemic, also known as coronavirus pandemic, is a persistent pandemic of coronavirus disease 2019 (COVID-19) exaggerated by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). As the coronavirus pandemic is still enduring, it has created a intense impact on socially, physically and economically on families across the globe. Similarly, home confinement leads to an increase in sedentary behaviors that lead to low levels of energy and mainly activities involving an excessive amount of sitting. These changes in dietary and lifestyle related habits during the COVID 19 outbreak could be associated with feelings of fear, anxiety, and stress, which many people may be experiencing around the world. Under the current restrictive measures and the prolonging of school closures indefinitely, there is a pressing need to call attention to the pandemics longer term effect on children and adolescent health and well-being.

Objectives: To assess the level of knowledge on COVID 19 among school age children.

•To assess the knowledge on impact of lockdown behavior changes among school age children.

•To find the association between levels of knowledge on COVID 19 among school age children with the selected socio demographic variables.

Methodology: A descriptive research design with purposive sampling technique was adopted to conduct a study among 60 school age children. Data was gathered by using self-structured questionnaires. Confidentiality was maintained throughout the procedure. Collected data were analyzed by using descriptive and inferential statistics.

Result: Among 60 school age children that level of knowledge regarding lifestyle changes on general information, majority 36(60%) had moderately adequate knowledge, 18(30%) had inadequate knowledge and 6(10%) had adequate knowledge. The study shows that none of the demographic variables like age, sex, educational status, religion, place of residence, diet pattern, about COVID 19 had shown statistically significant association with level of knowledge on impact of lockdown lifestyle behavior changes among school age children.

Conclusion: This studies concluded that there is statistically significant association with level of knowledge on impact of COVID 19 lockdown behavior changes.