Sample lesson with an image and a YouTube video clip

A group of students are new to science laboratory.  Please look at the diagram below and answer the questions by giving comments:
Q1. Find three behaviours that are unsafe.
Q2. Find three behaviours that are safe.
Watch the video clip below and draft a list with five safety guidelines that you think are important in science laboratory.

Materials adopted from: http://www.heumann.org/u1/lab_safety.html