Do all objects form shadows? in Light, Shadows and images – Class 6 Science Experiment

Chapter Name: Light, Shadows and images

Activity Name: Do all objects form shadows? in Light, Shadows and images

Activity Description:

The experiment involves using a torch to form shadows of various objects on the wall of a classroom. The objects to be tested are a book, a pen, a duster, a polythene cover, and a glass plate.

The objective is to observe any differences in the shadows formed by these objects and determine whether all objects form shadows.

Required Items:

  1. Torch
  2. Book
  3. Pen
  4. Duster
  5. Polythene cover
  6. Glass plate
  7. Wall of the classroom

Step by Step Procedure:

  1. Set up the experiment in a darkened classroom.
  2. Position the torch so that its light shines directly onto the wall.
  3. Take the book and hold it between the torch and the wall. Observe the shadow formed by the book on the wall.
  4. Repeat the process for the pen, duster, polythene cover, and glass plate, observing and noting the shadows formed by each object.
  5. Compare and analyze the differences in the shadows formed by the objects.

Experiment Observations:

  • The book, pen, duster, and polythene cover will form shadows on the wall.
  • The glass plate will not form a visible shadow on the wall.


  1. Ensure the classroom is adequately darkened to clearly observe the shadows.
  2. Position the torch at a suitable distance to obtain clear shadows on the wall.
  3. Handle the objects with care to avoid any accidents or damage.

Lesson Learnt from Experiment:

From the experiment, it can be observed that not all objects form shadows. Objects made of substances like paper, wood, iron, and the polythene cover are opaque, meaning they do not allow light to pass through them.

These objects form shadows. On the other hand, objects made of transparent substances like glass do not form visible shadows since they allow light to pass through them. This demonstrates the difference between opaque and transparent materials in terms of their interaction with light.

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