Making Waves – The Colors of Light

Los Colores de la Luz

 

WHAT ARE THE COLORS OF WHITE LIGHT? ARE RED LIGHTS ONLY MADE UP OF RED?  BUILD A SPECTROSCOPE FROM A CARDBOARD TUBE AND AN OLD CD AND STUDY THE COLORS IN THE LIGHTS AROUND YOU.

 

MATERIALS (Details in Teacher Notes linked below)

Activity 1 – Make a Rainbow

  1. Flashlight – the old fashioned kind with a single incandescent bulb or a single LED bulb

  2. Recordable CD with coating removed 

Activity 2 – Making Waves

  1. Rope or Slinky® (spring) toy

  2. Meter stick

Activity 3 – Make a Spectroscope

  1. Cardboard tube 15-20 cm long (like a toilet paper tube)

  2. Piece of a recordable CD with the label removed (see Teacher Notes)

  3. Square of aluminum foil, Craft knife or pencil to make a slit or hole in the foil, Tape, Rubber band 

Activities 4-5 – Studying Spectra 

  1. Same as Activity 3 plus assorted sources of light. 

OPTIONAL ACTIVITY:  Measuring Spectra. See Teacher Notes for details.

STUDENT INSTRUCTIONS AND TEACHER NOTES 

PowerPoint slides with student instructions   Colors_of_Light_Slides.pptx.zip


Presentaciones de PowerPoint con instrucciones para estudiantes  Los Colores de la Luz.pptx.zip  

Teacher Background Notes Colors_of_Light_Teacher_Notes.pdf

Handout for recording observations and data Colors_of_Light_Observations.pdf 

Video showing construction of spectroscope Optics Exploration –Cardboard Tube Spectroscope