What to use
Rectangular glass prism, triangular glass prisms (various angles), light box with prisms, plain paper, a page of text from a book or newspaper, 'Refraction' sheet.
What to do
Record your observations for each of the following activities.
A Rectangular glass prisms
Try standing a rectangular glass prism on various faces on a page of a book or newspaper.
- How does the writing on the page appear when viewed through the top of the rectangular prism?
- Where have you seen this effect before?