The goal of this project was to create an e-LKPD using Liveworksheets to help students enhance their critical thinking abilities on the subject of moving elements toward equilibrium in terms of validity, efficacy, and practicality. Research and development (R&D) is the methodology used in this investigation. With an average percentage of 81%, 82%, 81%, and 81%, the validity of the e-LKPD was found to have met very valid standards in terms of the viability of content, language, presentation, and graphics. The student response questionnaire was used to evaluate the practicality. e-LKPD's The aspects of content, language, presentation, graphics, and operation were considered, and the average percentages were 98%, 98%, 96%, 97%, and 95%, which met very practical criteria. Additionally, it is backed by observations of children who achieve a 100% grade point average. The N-gain value of cognitive tests received an average of 0.78 with very high criteria, the e-LKPD efficacy received highly effective criteria, and the n-gain critical thinking abilities received an average of 0.51 with moderate criteria. backed up by the Paired Sample T-test, which had a Sig (2-tailed) score of 0.000. This demonstrates that learning with the help of e-LKPD and Liveworksheets has an impact on the outcomes of cognitive and critical thinking tests.