Light makes the things visible

Learning Outcomes

1.   Identify the energy which helps us for our vision is light.

2.   Conclude that light is the energy which gives us sensation of sight.

3.   Illustrate the importance of light in our daily life.

4.   Develop team work and co-ordination skill.

Description Of Activity

HOW TO PLAY

1.   This activity is to be performed in the evening in the play ground.

2.   All 40 children of class 8^th are to be divided into four small teams. Each team comprises 10 members and different slots are allotted to different teams or groups.

3.   Ask 1^st group to play badminton from 5.00pm to 5.30pm, then 2^nd group from 5.30pm to 6.00pm, then 3^rd group from 6.00pm to 6.30pm and lastly 4^th group from 6.30pm to 7.00pm.

4.   Then record the difficulties faced by the children of different teams due to their allotted slots.

5.   Next day , ask these teams to play badminton again but slots are allotted in reverse manner i.e 4^th group play from 5.00pm to 5.30pm, then 3^rd group from 5.30pm to 6.00pm, then 2^nd group from 6.00pm to 6.30pm and 1^st group from 6.30pm to 7.00pm.

6.   Now again record the difficulties faced by the children of different teams.

7.   From the recorded data, we can conclude that when darkness started then visibility was low by which children faced difficulty to identify the “cork” and could not able to play properly.

8.   This activity helps to explain that light makes the things visible.

CLASS ROOM LEARNING:-

1.   In the class room also we divide the children into different groups, each group having 7 to 8 children.

2.   Arrange one group in a circular manner inside the class room.

3.   Now ask the children to catch a cricket ball by  throwing or passing the ball one by one  within them.

4.   After completion of two rounds, close the doors and cover the window screens (make sure that the class room is now dark, due to the poor light)  and then ask them to again play this same game.

5.   This time some children complained that they are missing ball to catch because of low visibility as room is dark without light.

6.   Repeat this activity with all the groups separately.

7.   Each group complained the same thing that poor light brings low visibility.

8.   This activity concluded that light makes the things visible.

Variations

The given game may vary like table tennis, cricket, carrom.

Coaching Tips

Students are encouraged to play and act different activity in day light and in dark night and learn that light is necessary for our vision. Teacher should involve in all these activities to encourage the children. Both indoor and outdoor games should be practiced in day and night time separately, by which children will be able to learn the importance of light energy for our vision.

Equipment/Material Required

Cricket ball, badminton racket and cork.