How can we see objects in Light, Shadows and images – Class 6 Science Experiment

Chapter Name: Light, Shadows and images

Activity Name: How can we see objects in Light, Shadows and images

Activity Description:

Locomotion in snail in Movements in Animals - Class 6 Science Experiment

The experiment aims to understand the concept of visibility and the role of light in enabling us to see objects.

By creating a dark room and introducing a light source, participants will observe the visibility of objects with and without obstructions. They will also explore the necessity of light to form shadows.

Required Items:

  1. Plank or writing pad
  2. Light source (bulb, candle, etc.)

Step by Step Procedure:

  1. Shut the door and windows of the room to make it dark.
  2. Turn on the light source (bulb) to illuminate the room.
  3. Choose any object in the room and observe its visibility in the darkness.
  4. Hold a plank or writing pad in front of your face, between your eyes and the object.
  5. Observe whether the object remains visible or becomes obstructed by the plank.
  6. Reflect on why the object is not visible when there is an obstruction.
  7. Recognize that an obstruction prevents the light from the object from reaching our eyes.
  8. Realize that we can only see objects when light falls on them and bounces back to our eyes.

Experiment Observations:

  • In a dark room, the object is not visible initially.
  • When holding a plank or writing pad between the object and your eyes, the object becomes obstructed and is no longer visible.

Precautions:

  1. Ensure that the light source is safely positioned and does not cause any hazards.
  2. Be cautious while moving in the dark room to avoid accidents.
  3. Handle the plank or writing pad carefully to prevent any injuries.

Lesson Learnt from Experiment:

  1. Visibility of objects is dependent on the presence of light.
  2. Light from a source (such as a bulb) falls on an object, bounces off it, and reaches our eyes, enabling us to see the object.
  3. Shadows are formed when light is obstructed by an object, preventing it from reaching a surface.
  4. Shadows can be formed both during the daytime (with sunlight) and at night (with artificial light sources like bulbs).

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