This demonstration is a great way for students to model the stages of mitosis. Images of the different stages in textbooks are static snapshots and many students have difficulty grasping the idea that mitosis happens as part of a continuous cycle.
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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
Teacher Demo/Student Activity: Transpiration
Categories: Lab/Student Activity, Teacher Demonstration
Xylem and phloem tissues make up the "circulatory" system of a plant. The xylem tissues transport water from the roots to all of the other living tissues, while the phloem tissues transport sugars... read more
Teacher Demo: Invisible Ink
Categories: Teacher Demonstration
In this demonstration, a chemical reaction is used to make a hidden message visible. The demonstration illustrates an entertaining application of chemical reactions in toys and everyday objects. It... read more