You have to make the speech on your own, as you have a different opinion on science and future related to science. anyways, here are some tips:-
(1) the speech should be futuristic.
(2) it should contain important and interesting information.
(3) the speech should be knowledgeable.
FOR THE QUESTIONS, KINDLY TELL THE TOPIC OF YOUR PARTNER SO THAT YOU CAN ASK HIM THE QUESTIONS PREPARED BY ME. BEST OF LUCK FOR ASL.