III. ACTIVITIES A. PRACTICE TASKS Task 1. Mark It! Make It! the key below. Notice how the details relate to topic sentence, regardless of where it is Directions: Using crayons or colored markers, highlight the parts of a paragraph using situated in the paragraph. 3. Topic Sentence Green Supporting Details Concluding Sentence Blue 1. After the diving suit, the next great underwater breakthrough was the famous aqua lung, invented in 1943 by Jacques Cousteau and Emil Gaguan. The tremendous importance of the aqua-lung, a self-contained air supply, was that it enabled men to swim freely underwater without any connection with the surface. Moreover, because it provided that it is handed properly - the aqua-lung allows almost anybody to dive. For centuries only the professional divers were able to go into the sea. Today, hundreds of thousands of ordinary people are exploring the marvelous is simple and safe to use - world beneath the waves. 2. Failures mean nothing at all if success comes eventually. Thomas Edison had ten thousand failures, as it were, before he invented the incandescent bulb There is much in life that doesn't have to be done instantly. Edison made up his mind that each failure should bring him closer to success. And that's a thought that should cheer you up and help you when the going seems hard. Keep going. One day soon, you will find a way to do the thing that today's looks impossible. Science is a method of knowledge. This method arose and first proved its usefulness within the realms of mechanics, physics, and chemistry. The first step is to discover pertinent facts. Next, you make a guess as to the law that accounts for the facts. And finally, you test the correctness of this guess by experiment. In essence, the method is remarkably simple​