Launch Testing (~10-20 min) The rockets will be launched and there will be a mini-competition to see which rocket goes the

farthest. Try to get the students to understand why some rockets worked better than others. Encourage students to try adjusting the rocket launcher to different angles. Procedure (as outlined by the mentors students will be working with): 1. Wrap paper around rocket launcher tube (students decide how tight ) 2. Use index card/ cardboard to make tail. (any shape is accepted) 3. Nozzles: cut out cone shape from a piece of paper. Circumference of bottom of cone must match circumference of pipe. Put pennies inside nozzle. (number of pennies is decided by the students). 4. If time permits, we will allow students to launch their rockets multiple times. Mentors: Assist the students while they are building their rockets. During rocket production, ask students why they are designing their rocket that way. During launches, have them focus on what makes some rockets work better than others. Expectation would be that the front of the rocket would not be overloaded with pennies (~2-3 pennies). Students should also realize that the tail of the rocket does not affect its flight that much. Wrap up discussion/concept check (to bring in for the next week, or the Monday in class after): 1) Why did we put the pennies at the front of the rocket? What would happen if we put pennies at the back of the rocket? 2) Did the rocket tail type make a difference? 3) At what launch angle did you find the rocket went the furthest? What other factors during the launching process affected how far the rocket launched? 4) What role did gravity have in launching the rockets? References: http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Water_Rocket_Launcher_Directio ns.html

Here: http://makezine.com/05/rocket/ Authors: Brian Ha, Samuel Fung, Andy Chu 50 Minute Lesson Modifications: Samuel Fung