Page 23 - ScienceStd4
P. 23

Activity 10


               1.  Use the library or reliable  online  sources to search for
          FOR ONLINE READING ONLY
                    information about warning signs and their meanings.

               2.  Among the signs you observed, which ones are common

                    in your environment?

              Prohibition signs

              These signs are also known as regulatory signs. They show

              things that are not allowed. The sign has a black picture on
              a white background with a red circular border. Some of these
              signs also have a red diagonal line crossing the circle. Examples
              include signs like “No Entry” and “No  Eating or Drinking”. Figure

              14 shows examples of prohibition signs.
















                          No entry                              No eating or drinking















                        Unsafe water                                 No littering

                                    Figure 14: Examples of prohibition signs





                                                   16



                                                                                            14/01/2025   18:38
     SCIENCE AND TECHNOLOGY STD 4.indd   16
     SCIENCE AND TECHNOLOGY STD 4.indd   16                                                 14/01/2025   18:38
   18   19   20   21   22   23   24   25   26   27   28