Describe a simple experiment to illustrate that molecules are not at rest, but constantly move.

AcademicPhysicsNCERTClass 6

First of all we will take a beaker. Now, we will fill it partly with some water. Then, add some lycopodium powder to the beaker. Now, we will stir the contents of a beaker with a glass rod. After stirring well we will take out a few drops of this suspension on a glass plate. Now, place it on the table and illuminate it with a table lamp. On observing the glass plate through a microscope we find that the fine particles of a lycopodium powder are moving rapidly in a random motion in a zig-zag path.

Updated on 10-Oct-2022 13:33:38