Worksheet: Safe Laboratory Practice

In this worksheet, we will practice identifying safe and hazardous behaviors in the laboratory and describing safe approaches to practical work.


Before leaving a laboratory, in which order should the following actions be performed?

  1. Clean up glassware.
  2. Remove labcoat.
  3. Remove gloves.
  • A3, 2, 1
  • B1, 2, 3
  • C2, 1, 3
  • D1, 3, 2
  • E3, 1, 2


Where should a disposable needle never be inserted during normal use?

  • ARubber bung
  • BCork ring
  • CRubber septum
  • DOriginal sheath
  • ESharps bin


When is the best time to remove a disposable needle from a disposable syringe?

  • ANever
  • BImmediately after removing from the flask
  • CImmediately after washing the syringe
  • DWhen inserted into the sharps bin
  • EImmediately after dispensing the syringe contents

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.