In this demo, a polyethylene strip is charged by rubbing with wool. The charged strip is then used to charge a neutral object, a pith ball, by contact. This demo can be done as a student activity.
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Teacher Demo: Neutrally Buoyant Helium Balloon
Categories: Teacher Demonstration
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Categories: Lab/Student Activity, Teacher Demonstration
Prior to Thomson’s work it was thought that the atoms of each element were unique, invisible particles, or that atoms were made of subatomic particles that had significant mass compared to the atom... read more
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Categories: Lab/Student Activity, Lesson Plan
Written by Sameer Yachouh, Don Galbraith Award Recipient 2024, Queen's University In this lesson and mini lab, students will learning how echolocation is used by animals like bats and dolphins,... read more