25 March 2024

Cheek cells +


 What are all those little black things with my cheek cells asked a student, looking down the microscope at his freshly prepared cheek cell slide. These are bacteria. He went and brushed his teeth immediately and prepared a new slide.

No comments:

Post a Comment

Physics Without Maths: Like Trying to Sail Without a Rudder

  Physics Without Maths: Like Trying to Sail Without a Rudder Every year, I meet students who have chosen A-level Physics but have not chose...