https://www.youtube.com/watch?v=BPwNncs6QUE&t=8s
Showing posts with label 2018. Show all posts
Showing posts with label 2018. Show all posts
Monday, February 5, 2018
lab safety
Here is a vedo of what is the rules in the science lab
https://www.youtube.com/watch?v=BPwNncs6QUE&t=8s
https://www.youtube.com/watch?v=BPwNncs6QUE&t=8s
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