Example: air traffic controller
Search results with tag "Card board box"
MAJOR EXPERIMENT (CLASS - XII - BIOLOGY) EXERCISES 1
stjohnsschoolkota.edu.in(2) Materials Required: Card board box, torch, beaker, different samples of water. (3) Procedure: (1) Take a cardboard box and prepare a Tyndal set-up from it to test turbidity. (2) Tyndal set-up can be prepared by making a pencil size hole in the card board box and fixing a light source on the other side of the box.