Biology Lab Techniques Worksheet
This worksheet covers fundamental biology lab techniques including microscopy, sterile technique, and measurement, suitable for Grade 9 science students.
Includes
Standards
Topics
Biology Lab Techniques
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which part of the microscope should you use to make large adjustments to focus when using the scanning objective lens?
Fine adjustment knob
Coarse adjustment knob
Stage clips
Diaphragm
2. Calculate the total magnification if the eyepiece lens is 10x and the objective lens is 40x.
50x
400x
4000x
4x
3. Label the following parts of the microscope:
A. (Eyepiece)
B. (Objective lens)
C. (Stage)
D. (Light source)
4. True or False: It is acceptable to touch the inside of a sterile petri dish lid after it has been sterilized.
True
False
5. True or False: Flaming the neck of a culture tube before and after transferring media helps maintain sterility.
True
False
6. Always wear to protect your eyes when working with chemicals or glassware.
7. Dispose of sharp objects like broken glass in a designated container.
8. Explain why proper handwashing is a critical lab technique.