In this demonstration, students will see how an antibody can disable antigens to help eliminate foreign invaders from the body and prevent humans from getting sick.
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Teacher Demonstration: Liver Enzyme Action
Categories: Teacher Demonstration
This demonstration illustrates the importance of enzymes in the human body. Enzymes catalyze many important chemical reactions in the body. This demonstration is a visual example of how the enzyme... 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/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