Reflecting Rainbows

Students use compact discs (CD) to observe and explore how light is influenced by materials and surfaces.  Simple directions are included to prompt students as they manipulate the disc to make different effects.  Materials are easily obtainable.This activity is a good activity to engage students as they begin a study about how materials and surfaces influence how light behaves.  In this activity, light is reflected causing a rainbow effect.  This simple activity leads to students raising their own questions and informally exploring as they manipulate the CD in different amounts of light and move it in different directions. 

Lesson Variations

Blooms taxonomy level: 
Understanding

Helpful Hints

Materials:

  • compact disc (also known as a CD) (If you don't own any CDs, you can buy an old one at a garage sale. Or ask at a record store if they will give you a CD that won't play.)
  • sunshine (or a bright flashlight and a room that you can make dark)
  • piece of white paper

References

Contributors: