Page 1 - HOW WE SEE THINGS
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SAI INTERNATIONAL SCHOOL

                                                Science Worksheet
                                                        CLASS -3


           Name-                                   Sec -                     Date-

           Q.A Mark each of these statements as either true ✓ or false ✗.

               1. We can see objects in complete darkness.
               2. The Sun is a luminous object.

               3. A book is a luminous object.
               4. Non-luminous objects produce their own light.

               5. Light travels in straight lines.
               6. We can see an object only if it is luminous.

               7. The Moon is a luminous object.
               8. Light from luminous objects helps us see non-luminous objects.
               Q.B. Answer the following questions briefly

               1. What is the main difference between luminous and non-luminous objects?
               2. Give two examples each of luminous and non-luminous objects.

               3. Can non-luminous objects reflect light? Explain with an example.
               Q.C. Look at the picture and answer the following questions:

               a) Identify the source of light.
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               b) Identify the objects.


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               c) Write a sentence to explain how Riya can see the flowers.


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               d) Explain how Riya can see the flowers of her garden at night.


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