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youtube.com/watch?v=PQrYV7hJWDg&list=PLzxMOn3fsgGopymjoijoqbOJmYqcs1O1t&index=2
https://ncr1.lms.deped.gov.ph/moodle/pluginfile.php/556787/course/summary/28869207827458786-video.webmhttps://ncr1.lms.deped.gov.ph/moodle/pluginfile.php/556787/course/summary/8179617960355821-audio.ogg
WELCOME TO SCIENCE CLASS
