What kind of diagram do scientists use to show how light travels? Draw a simple diagram of one. (page 190)

How does a "Ray Diagram" explain how shadows are created? (page 190)

When light strikes objects, it behaves in different ways depending on the type of material each object is made of. Define these terms: Transparent, Translucent, and Opaque (page 191)

What is the difference between Non-Luminous and Luminous? (page 191)

What are the two types of reflection that we discussed, and provide an example of each. (page 193)