lab ruler

Most biology labs have the safety rules put up in the labs and your teacher will most likely go over them
with you before you begin working.
Be prepared.
Before you enter a biology lab,you should be prepared for all lab exercises that are to be performed.
that means you should read your lab guiding book to know exactly what you will be doing.Review your biology notes.Make sure you understand all procedures(步骤)and purposes,as this will help you understand the lab activities you will perform.It will also help you get your thoughts organized if you have to write your lab report.
Be tidy.
When working in a biology lab,make sure you keep your area clean and organized.If you happen to make something run out,ask for help when cleaning it up if necessary.Also remember to clean your work area
and wash your hands when you finish the tasks.
Be careful.
An important biology lab safety rule is to be careful.You may be working with glass or sharp objects,so you’d better not be careless.
Wear proper clothes.
Accidents do happen in a biology lab.Some chemicals(化学物质)can damage clothing.With that in mind,you should make sure to wear right clothing so that you can continue working without getting it
damaged.
Be careful about chemicals.
The best way to remain safe when you’re working with chemicals is to think that any chemical you will use
is dangerous.Be sure that you understand what type of
chemicals you are using and how they should be properly used.If any chemical comes in touch with
your skin,wash immediately with water and tell your lab teacher.
Wear protective glasses.
I know that protective glasses are out of fashion,not smart and can fit strangely on your face,but they
should always be worn when you are working with chemicals to protect your eyes from being hurt.