Describes how to construct a simple device that students can use to estimate how high their kites are flying, as well as the heights of other objects. (TW)

Describes directions for constructing "racing" cars out of simple materials like spools and coffee cans. Discusses procedures for students to build cars, then to test and race them. Stresses that the activity allows for self-discovery of problem solving techniques and opportunities to discuss the scientific concepts related to the activity. (TW)

Three activities involving electromagnetism are presented. Discussed are investigations involving the construction of an electromagnet, the effect of the number of turns of wire in the magnet, and the effect of the number of batteries in the circuit. Extension activities are suggested. (CW)