The document prompts readers to explore the concept of light travel through observation of pictures. It encourages questions about the sources of light, visibility of shadows at night, and personal observations regarding light. The overall aim is to stimulate thought and discussion about the nature of light and shadow.

1. Light and shadowHow Does Light Travel?

2. Look at the pictures. Think about how the light is travelling.

7. Have you noticed anything special about the way the light travels in each of the photos?

12. Where does light come from?The Sun?

14. Where else does light come from.....?

21. Think.....Can we see shadows at night?Why/Why not?

33. What have you observed about how light travels?