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There are generally two main reasons for requiring young students to have a teacher's permission to touch lab apparatus:

(1) Lab Equipment can be dangerous, especially where toxic or partially toxic chemicals are involved, but also because of how heavy the equipment is, or how hot bunsen burners can get, or how sharp glass slides or broken glass can be.

(2) Lab Equipment is expensive and the possibility of it breaking when a student mishandles the equipment is a serious financial consideration. When the teacher can supervise the student, he/she can prevent students from being excessively callous or violent to the lab equipment.

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8y ago

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