A playground space with a 30 meter radius is desirable but less space is acceptable. A stopwatch will be needed and inclinometer must be constructed using protractors to measure the angle of the launched balloons. The use of computers and video laser disks enhance and extend the range of activities but the lab can run easily without them. The Program Students launch water bombs using a giant water bomb slingshot. Data from both measures are compared and discussed.
Students evaluate the data to find the most accurate measure.
Students can test their predictions. The unit has several activities that the teacher can gear to the level of the class. Along with the outside measurement activities, students graph a variety of data using computer spreadsheets and graphical analysis programs. Students develop a simulated flight on the computer, videotape the flight and make comparisons. National Science Teacher Association, April, 1992.