How are we alike and/or different from people who lived in the past? This program features our unique collection of historic California model railroads to engage students in an exploration of the past, and an understanding of how some things change while others stay the same.

What makes arches and triangles so strong? Students will learn about both the physical science and history of arch and truss bridges. Students will perform several experiments to investigate the inherent strength of these shapes and understand why civil engineers frequently use them in the design and construction of structures in general and bridges in particular. Student assessment accompanies the program.