Shadow cast by the sun become shorter from dawn until midpoint of the day, then they begin to lengthen until dusk. This lesson provides students with the opportunity to use skills of observation to come to an understanding that for a shadow to form there must be a light source, an object to block the source, and a surface for the shadow to form on. The students will listen and follow directions. This activity works best on a sunny day. If the weather doesn t cooperate still go out and search for shadows and compare those shadows to the shadows of a sunny day later on.
Procedure Take the class outside.
Line the students up outside with their backs to the sun. Have the students look down and describe what they see. Introduce the word shadow and with the class create a definition of a shadow. Predict what will happen to your shadow if you raise your arm. Then have them raise their arm.