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Name: ................................................................... Class: ..................... Date: ........................
                                                                                                                                     WORKSHEET 1                                               Light
                                                                                                                                                                                               Light



                                                                                                                                     Complete the following sentences.







                                                                                                                                         1- We can't see ............... or ............... energy.

                                                                                                                                         2- The ............... energy is the only form of energy that


                                                                                                                                              can be seen.


                                                                                                                                         3- The main source of light on the Earth is ...............

                                                                                                                                         4- The light energy that can be seen is called


                                                                                                                                              the ...............


                                                                                                                                         5- The moon is not a source of light as it ...............


                                                                                                                                              the sunlight.

                                                                                                                                         6- ............... , ............... and ............... are sources of light.


                                                                                                                                         7- Light travels in ............... lines.


                                                                                                                                         8- Formation of ............... through narrow holes is due

                                                                                                                                             to travelling of light in straight lines.


                                                                                                                                         9- A ............... and ............... image is formed through
           © 2020Alexandria Library for Publishing and Distribution
           ISBN : 978 977 452 538 1                                                                                                          narrow holes.
           Deposit No : 2019 / 9946
           Phone:  (03) 59 27 310                                                                                                        10- Light travels in straight lines. This is the idea of
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           alex4book@hotmail.com                                                                                                             making ...............
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                                                                                                                                         11- When light falls in an opaque object, it forms a
           Author: M. GALAL
                                                                                                                                            darkened area known as ...............


                                                                                                                                         12- Formation of ............... is an evidence that light


                                                                                                                                             propagates in straight lines.
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