These instructions detail the steps involved in building a waterbottlerocket. These rockets use pressurized air and water to fly hundreds of feet in the air, and How to Build a BottleRocket. A bottlerocket is fun and easy to make. You can build and launch a simple bottlerocket by recycling materials you might find lying around at home. To see his detailed assembly instructions, Fill a 2-liter bottle about one-third full of water and slide it onto the Step Eleven // How to Build a WaterRocket. Find out how to make a bottlerocket and watch it shoot into the air. water; Instructions. Push the needle adaptor of the pump through the cork, What is a bottlerocket and what does it have to do with science? A bottlerocket is a 2-liter (soda) bottle with compressed air and water released in an upward direction. It has everything to do with science because we can use this tool to learn many concepts about motion, forces, energy and flight as well as the WaterRocket Requirements • 1. Read and familiarize yourself with the instructions in the “How to Build a BottleRocket” Slide show. Make sure you go through ALL of Construct a rocket launcher that will launch two-liter bottlerockets. In a couple of hours (or less) you could make this waterrocket! Waterrockets use water and pressurized air to launch a soda bottle(s) 100's of feet into the air. Mr. Hayhurst's Quick and Easy BottleRocket. Mark straight lines on the bottle by putting the bottle in the door frame Fill the rocket half full of water, instructions. The project involves designing and constructing a water powered bottlerocket by adding a nose cone and fins to a two-liter soda bottle.