Today, we are making a simple experiment with diving jellyfish in a bottle (1) Cut about two inches long piece of paper straw, colour it with a permanent marker. - Paper straw - Paper clip - Empty plastic bottle - String - Water - Scissors - Permanent markers ⭕ INSTRUCTIONS:⠀ (1) Cut about two inches long piece of paper straw, colour it with permanent marker. (2) Thread a string through the straw and fold it in half. (3) Slide the straw over a paperclip so that two ends of a paper clip go inside