This demonstration will help students understand what is required for an image to be formed by a lens. As well, it will help to diagnose possible misconceptions about image formation.
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Demonstrating Chemical Concepts
Categories: General Interest, Teacher Demonstration
This PowerPoint presentation offers teachers ideas for demonstrations of multiple concepts across grades 9 through 12 chemistry classes. read more
Teacher Demo/Student Activity: Gas tests
Categories: Lab/Student Activity, Teacher Demonstration
This demonstration/activity involves the safe production of oxygen, hydrogen, and carbon dioxide gases, as well as the appropriate results for tests used to identify these gases. read more
Teacher Demo/Student Activity: Limit to Cell Size
Categories: Lab/Student Activity, Teacher Demonstration
Cells require a constant supply of glucose and oxygen to produce energy. Cellular respiration occurs in the mitochondria of a cell. As a result of this process, large quantities of waste carbon... read more