Page 11 - Science B.B Prim.4 concept 2&3 t.1 e-book _2024-2025. - Copy (1)_Neat
P. 11

Communication

             Light    Using fire      Using
            signals   for large      mirrors
                      distances     to attract
                                     planes

Rescue                  Ways of                 Music
 flare                transmitting                 or
                      information
                                                sounds

Writing                                        Using of
                                              different
               Hand                           languages
               signs
                         Facial
                      expressions

First Term  Code: a pattern that has meaning

                                     33
   6   7   8   9   10   11   12   13   14   15   16