ABSTRACT
This chapter illustrates that light appears to travel in straight lines, and shows that objects are seen because they give out or reflect light into the eye. It explains that one sees things because light travels from light sources to the eyes or from light sources to objects and then to the eyes. The chapter illustrates why shadows have the same shape as the objects that cast them. It describes scientific procedures and clear instructions that outline the simple equipment required for carrying out each procedure. The chapter provides National Curriculum assessment indicators and illustrates how to carry out the primary science experiments and what results to expect. Suggestions for adapting each procedure or activity to the special needs and interests of the students are discussed.
