Camera obscura

Students build a camera obscura from a box and observe an inverted image.

Steps

1. We make a small hole in a box and a screen out of tracing paper.
2. We observe the image in a dark place.
3. We check how the size of the hole changes the image.
4. We talk about the history of photography.

Tip: The best effect is on a sunny day and with your head covered.

Materials needed

• Tracing paper (1 block)
• Electrical tape (1 roll)