In this demonstration, laser light is bent as it travels through a sugar (or salt) solution of varying concentrations.
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Guidelines for Constructive Demonstrations/Activities
Categories: Lab/Student Activity, Teacher Demonstration
The demonstrations/activities in this resource have been designed to challenge students' thinking as well as initiate lively classroom discussions that support constructivist learning. These short... read more
Teacher Demo: What Makes Up a Planet?
Categories: Teacher Demonstration
The International Astronomical Union classifies solar system bodies into three categories: planets, dwarf planets, and small solar system bodies (including comets, asteroids, and... read more
Teacher Demonstration: The Force of Air Resistance and the Speed of an Object
Categories: Teacher Demonstration
Most of us know from experience that the force of friction caused by air resistance increases as the relative speeds increases. The purpose of this activity is to develop a proportionality statement,... read more