Describes an activity to study the concepts of force and gravity. Students use trigonometry to measure the height of a water balloon shot into the air by a giant slingshot by two methods. A lesson plan provides materials needed, procedures, a chart to record data, and extensions for the activity. (MDH)

Presents an interdisciplinary activity that combines math and science and enhances cooperative learning skills. Enables students to learn about the scientific method by designing an original research project, collecting and interpreting data, and drawing conclusions based on their research. (JRH)

Presents a hands-on activity in which students try to identify 15 unknowns using only their sense of touch. This method reinforces the science process skills of observing, collecting and recording data, and analyzing data tables while requiring few reading skills. (MDH)