NCERT BASED CONTENT CLASS VI CHAPTER-11

1. TOPIC-
LIGHT AND
SHADOWS
CHAPTER-11
CLASS VI
WARSHA KUMARI
INTERGERATED
(B.SC-B.ED)

2. Objects Object emit light Object do not emit light
Candle
Book
Spectacles
Bulb
Flower
House
Sun
Star

3. Luminous object- The object that emits light is called Luminous
objects
Non -luminous object-
The object that does not emit light are called Non Luminous
objects.

4. LUMINOUS NON-LUMINOUS

5. Objects that view through possible fully/partially/not at all.
Glass bottle
Notebook
Cloth
Tissue
Thin paper
Rubber

6. DEFINITION OF TRANSPARENT, TRANSLUCENT AND OPAQUE.
TRANSPARENT- allowing light to pass through so that objects behind can be
distantly seen.
TRANSLUCENT- allow lights to pass through them partially.
OPAQUE-not able to seen through, not transparent.
https://youtu.be/P6Uihn8V3h4

7. Shadows?
Shadows are made by blocking light. Light rays
travels in a straight lines.

8. The size of the shadow
depends on the proximity of
the object to the light source.

9. Our shadow is very long in the morning when the sun just rises.
The length of our shadow goes on decreasing till noon. Our
shadow is shortest at noon.
The length of our shadow starts decreasing in the afternoon.
And our shadow becomes very long in the evening, just before
sunset.
INTERESTING FACTS

10. THREE THINGS TO OBSERVE A SHADOW
1) A source of light
2) An opaque object
3) A screen on which the
shadows can be.

11. So , today we have learnt about ‘ Light and Shadows’ and now summarize
today’s class:
What is the source of light?
Differentiate between luminous and non-luminous objects.
Formation of Shadow.
Recognize the object as Transparent,Opaque and Translucent
objects.

12. Q) Which of the following is a source of artificial light?
a) Electric bulb
b) Candle
c) Torch
d) All of these

13. HOMEWORK

14. FILL THE WORKSHEET: