1. A Model Kit

In this type of science project, a display of some kind is assembled in order to illustrate something related to science. A famous example is the "erupting volcano" model. This is a plaster model of a volcano that is filled with baking soda and vinegar; the reaction between the chemicals causes a violent foaming which erupts like lava. This type of science fair project requires the least amount of work, and lacks the creativity that judges look for. it is sometimes used for elementary school science fair projects, but is rarely appropriate for middle school or high school.